Search Results — 2000 specimen records retrieved (1343 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC1618268  Abutilon theophrasti Barbara Ertter with CNPS 1990-8-19 9622 Contra Costa E side of S end of Briones Reservoir N of Orinda, along Bear Creek trail on EBMUD land, near junction of main trail and path to Briones Overlook Staging Area 182 Comment
  UCD116164  Abutilon theophrasti R. P. Allen; Perry Allen 1961-8-11 s.n. Contra Costa Adventive four miles east of Byron. Comment
  JEPS112392  Acacia dealbata Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .232 Contra Costa Crockett; County: Contra Costa; West Crockett, below Dead Fish Restaurant along Carquinez Straight. Comment
  JEPS42648  Acer macrophyllum W. L. Jepson 1916-10-28 6853 a Contra Costa Las Trampas Creek Comment
  JEPS42649  Acer macrophyllum W. L. Jepson 1908-4-4 3005 Contra Costa West Branch San Pablo Creek Comment
Read comments
Jul 7 2011
  UC762183  Acer macrophyllum R. F. Hoover 1938-5-4 3345 Contra Costa peak e Tassajero Creek (canyon slope); Peak e of Tassajero Creek (canyon slope) Comment
  UC1050967  Acer macrophyllum N. Floy Bracelin 1941-4-8 2647 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  SEINET3195243 Image available Acer negundo var. californicum Annetta Carter 1937-3-28 1227 Contra Costa Creek bank, Moraga Valley, 2.5 miles north of Moraga 180 Comment
  CAS-BOT-BC21713  Achillea millefolium Mary L. Bowerman 1930-6-3 238 Contra Costa Mount Diablo: West road 1.9 miles from entrance Comment
  JEPS37093  Achillea millefolium W. L. Jepson 1922-5-23 9651 Contra Costa Mt. Diablo Comment
  UC1948954  Achillea millefolium William J. Ferlatte, L. Maynard Moe 1970-4-27 1227 Contra Costa San Francisco Bay: Red Rock Island Comment
  CAS-BOT-BC29885  Achyrachaena mollis L. Kellogg; Brannan 1870-4-20 s.n. Contra Costa Antioch Comment
  JEPS111752  Achyrachaena mollis D. G. Kelch 2005-4-15 05 .153 Contra Costa Rodeo Creek EBRP land. West of Cummings Skyway near summit (Old C&H Sugar diatomaceous earth dump) 220 Comment
  RSA15448  Achyrachaena mollis Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Nortonville. Comment
  UC88435  Achyrachaena mollis T. S. Brandegee 1892-5-1 Contra Costa Antioch Comment
  UCD32385  Achyrachaena mollis Beecher Crampton 1950-4-22 529 Contra Costa above Sand Creek, on hills to north above Lone Tree Valley 106 Comment
  UCD104153  Acmispon glaber W. A. Williams 1951-6-8 s.n. Contra Costa Mt. Diablo. Comment
  CHSC23289  Acmispon wrangelianus Carol Getzinger 1964-4-11 Contra Costa Along Arlington Boulevard at Patterson Circle, Richmond. 30 Comment
  JEPS112393  Acmispon wrangelianus Dean G. Kelch and Andrew G. Murdock 2005-5-13 05 .253 Contra Costa Martinez - West: Ozol Rock and Scenic Drive. Comment
  CDA35657  Acroptilon repens Vince Guise 2011-8-2 PDR# 1649692 Contra Costa Discovery Bay; southwest corner of Discovery Bay Blvd. and Clipper Dr. 0 Comment
  UCD128498  Acroptilon repens Collector unknown 1928-8-1 1428 Contra Costa Richmond. Comment
  SEINET11907860  Adenostoma fasciculatum L. J. Musselman 1970-1 3774 Contra Costa W slope of Mt. Diablo, near summit ridge 1067 Comment
  CAS-BOT-BC65622  Adiantum jordanii D. E. Breedlove 1970-4-18 17432 Contra Costa at the north edge of Lafayette above Laurel Drive 243 Comment
  CDA42503  Adiantum jordanii A. G. Murdock 2004-2-12 206 Contra Costa Franklin Canyon - McHarry Ranch Road. Comment
  LA205595  Aesculus californica J. A. Ewan; 1936-5-31 9715 Contra Costa Wildcat Creek Comment
  RSA31206  Agoseris grandiflora Joseph A. Ewan 1934-4-8 8759 Contra Costa 10 mi. from Clayton on Livermore road, head Hog Canyon 640 Comment
  SEINET209195 Image available Agoseris grandiflora W. L. Jepson 1922-5-26 Contra Costa North Berkely hills. Comment
  UCD36920  Agoseris grandiflora Beecher Crampton 1956-5-14 3400 Contra Costa Mount Diablo, south of Windy Point. Comment
  UC1125464  Agoseris grandiflora var. grandiflora C. M. Belshaw 1936-5-12 2102 Contra Costa 2 mi ese of Mt. Diablo; Mt. Diablo Quadrangle 335 Comment
  JEPS36279  Agoseris heterophylla var. heterophylla W. L. Jepson 1922-5-23 9667 Contra Costa Mt. Diablo (north slope) Comment
  UC691794  Agoseris heterophylla var. heterophylla Mary L. Bowerman 1933-5-18 2127 Contra Costa grassy slope Blackberry Spring; Mount Diablo Comment
  SEINET10789684  Agropyron inerme Thomas B. Croat 1966-6-18 Croat 1989 Contra Costa Frank's Tract, Bethel Island; 7 miles W of Oakley, lakeside & marsh habitats. Comment
  CAS-BOT-BC127339  Agrostis exarata Mary L. Bowerman 1932-11-12 1647 Contra Costa Mount Diablo. Canyon Spring. 1005 Comment
  UC2028498  Agrostis exarata Barbara Ertter 1999-6-12 16711 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, road crossing at confluence of NE and E forks of Sycamore Creek Comment
  UCD52550  Agrostis exarata var. pacifica Beecher Crampton 1959-9-3 5455 Contra Costa cleared bed of Bear Creek, 2 miles north of Orinda. Comment
  JEPS107127  Agrostis hallii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14221 Contra Costa Mt. Diablo southeast of Walnut Creek, north of Curry Point. 518 Comment
  RSA0029361  Agrostis hallii Barbara Ertter 1996-11-24 15416 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca. 0.5 air mi ENE of Macedo Ranch. Comment
  UC2070613  Agrostis stolonifera Barbara Ertter with Chris Thayer, Dianne Lake et al. 2001-5-26 17654 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch. Comment
  JEPS100153  Ailanthus altissima A. Langston 2003-8-26 AL 81 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS100029  Aira caryophyllea S. O'Neil 2003-5-1 SEO 23 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2028522  Aira caryophyllea Barbara Ertter 1997-9-14 15810 Contra Costa Southwest side of Mount Diablo, Secret Trail at head of Pine Canyon. Comment
  UC2028387  Aira caryophyllea var. caryophyllea Barbara Ertter 1998-6-20 16257 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Costanoan Trail on north side of central ridge, edge of road through woodland Comment
  CAS-BOT-BC138386  Aira caryophyllea var. caryophyllea Barrett Anderson 1987-4-29 3479 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC2028476  Aira caryophyllea var. caryophyllea Barbara Ertter with Richard K. Brummitt 1998-5-6 16105 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  CAS-BOT-BC445378  Alisma plantago-aquatica Volney Rattan 1886-6-16 s.n. Contra Costa Walnut Creek Comment
  CAS-BOT-BC175361  Allenrolfea occidentalis J. W. Congdon 1889-6-19 s.n. Contra Costa Byron Springs Comment
  POM164980  Allenrolfea occidentalis Jos Burtt Davy 1898-05 s.n. Contra Costa Byron Springs, Mt. Diablo region. Comment
  UC3090  Allium acuminatum Edw. L. Greene 1892-1 Contra Costa Mt. Diablo Comment
  RSA367058  Allium amplectens Mark Morris 1929-03 14928 Contra Costa Mt. Diablo. Comment
  RSA59638  Allium falcifolium Verne Grant, Alva Grant 1950-5-13 8898 Contra Costa North slope of Meridian Peak. Comment
  JEPS56390  Allium serra W. L. Jepson 1918-6-3 7581 Contra Costa Donner Canyon Mt. Diablo, Donner Canyon 609 Comment
  UC692029  Allium serra Mary L. Bowerman 1932-4-16 1361 Contra Costa Eagle Point ridge n 1862 point (canyon between the two ridges); Mount Diablo, Eagle Point ridge Comment
  UC189380  Allium unifolium J. W. Congdon 1896-5-30 Contra Costa Mt. Diablo Comment
  UC692021  Allium unifolium Mary L. Bowerman 1933-5-22 2165 Contra Costa flat at head of n ridge w 1970; Mount Diablo, Inner Black Hills Comment
  SEINET7881741 Image available Allocarya stipitata H. S. Reed 1940-1 355 Contra Costa Marsh Creek road, Mount Diablo, altitude 800 feet. 244 Comment
  SEINET3151683  Allocarya trachycarpa L. S. Rose 1936-4-24 36151 Contra Costa 10 miles S of Antioch 30 Comment
  JEPS69375  Allophyllum gilioides subsp. violaceum Mary L. Bowerman 1935-4-26 2919 Contra Costa summit Meridian Peak; Mt. Diablo, Meridian Peak 1158 Comment
  SEINET3151403  Alnus rhombifolia L. S. Rose 1938-10-28 38307 Contra Costa Marsh creek, 6 miles East of Clayton. 152 Comment
  UC692034  Alnus rhombifolia Mary L. Bowerman 1931-10-13 1058 Contra Costa Alamo Canyon Mount Diablo 259 Comment
  SJSU7899  Alopecurus myosuroides H. G. Reeves 1972-5-8 Contra Costa W shore of San Pablo Reservoir near Bench Mark 24, 7 mi S of Dam Comment
  UCD55972  Alopecurus saccatus P. B. Kennedy 1916-5-11 s.n. Contra Costa Richmond District, Grand View Terrace. Comment
  UC691918  Amaranthus californicus Mary L. Bowerman 1933-9-9 2431 Contra Costa Frog Pond Mount Diablo Comment
  JEPS111728  Ambrosia chamissonis D. G. Kelch 2004-7-9 04 .312 Contra Costa Rodeo Shore 2 Comment
  UC1948953  Ambrosia chamissonis William J. Ferlatte, L. Maynard Moe 1970-4-27 1219 Contra Costa San Francisco Bay: Red Rock Island Comment
  UCD128783  Ambrosia chamissonis G. Thomas Robbins; John Weiler 1959-5-23 4021 Contra Costa Brooks Island (its north-western extension), San Francisco Bay, Richmond. 7 Comment
  SEINET11910975  Amelanchier alnifolia W. Knight, Knight, I. 1983-1 4741 Contra Costa Tilden Botanic Garden, Berkeley Comment
  UCD33151  Ampelodesmos mauritanicus Beecher Crampton 1966-10-18 7816 Contra Costa Contra Costa County, Kensington, Berkeley Hills Blake Garden, UC Berkeley Dept. of landscape architecture. Comment
  CAS-BOT-BC222222  Amsinckia John Thomas Howell 1934-4-8 11813 Contra Costa 7 miles from Clayton on road to Livermore Comment
  CAS-BOT-BC222223  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2143 Contra Costa At Antioch Comment
  CAS-BOT-BC222225  Amsinckia Alice Eastwood; John Thomas Howell 1936-4-19 2131 Contra Costa Nortonville Comment
  UCD32491  Amsinckia Beecher Crampton 1950-4-22 522 Contra Costa Contra Costa County, above site of Judsonville, west of old Empire mine. 152 Comment
  CAS-BOT-BC222303  Amsinckia douglasiana A. A. Heller 1938-4-9 15016 Contra Costa 3 miles southwest of Antioch Comment
  UC1178261  Amsinckia eastwoodiae R. Bacigalupi and Francia Chisaki 1957-3-27 914 Contra Costa 2.2 mi southeast of Byron (on Byron Highway) Comment
  RSA0090926  Amsinckia eastwoodiae A. A. Heller 1941-3-24 15906 Contra Costa Byron Springs. Comment
  CDA29055  Amsinckia intermedia D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .225 Contra Costa Byron Airport. Comment
  UC1618223  Amsinckia intermedia Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8130 Contra Costa ca. 15 air mi. s.w. Stockton (w. and adjacent to Clifton Court Forebay) Comment
  UC1073066  Amsinckia intermedia Helen K. Sharsmith 1954-3-24 4410 Contra Costa e of Mount Diablo (Canyon slope back of Nortonville Mines); Inner South Coast Ranges 304 Comment
  JEPS20866  Amsinckia lunaris W. L. Jepson 1899-4-19 21083 Contra Costa Las Trampas Ridge Comment
  JEPS25354  Amsinckia lycopsoides Rimo Bacigalupi with Paul C. Hutchison and John Weiler 1959-3-19 6964 Contra Costa 1.9 mi w Byron (at road summit along Camino Diablo) 54 Comment
  SD71393  Amsinckia lycopsoides John Thomas Howell 1933-5-14 11225 Contra Costa St. Mary's College Comment
  UC24601 Image available Amsinckia lycopsoides J. Burtt Davy 1895-4-7 887 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UCD119723  Amsinckia lycopsoides R. Bacigalupi; Francia Chisaki 1957-3-27 910 Contra Costa Rolling plain along Somersville road between Borden Highway and Southern Pacific Railway, 0.75 mile west of Antioch. 19 Comment
  CDA9450  Amsinckia menziesii D. G. Kelch 1992-3-21 1822 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS18323  Amsinckia menziesii var. menziesii Rimo Bacigalupi with F. Chisaki 1957-3-27 5758 Contra Costa 1 1/2 mi e of Antioch (city limits, just e of Kaiser Gypsum Plant, along Wilbur Avenue Road) 9 Comment
  JEPS108530  Amsinckia menziesii var. menziesii Lisa Schultheis with Kevin Hintsa 1995-4-25 67 -95 Contra Costa Mount Diablo. Wall Point Road, where an arroyo crosses the trail, near the Macedo Ranch parking lot Comment
  UC1073067  Amsinckia menziesii var. menziesii Helen K. Sharsmith 1954-3-24 4411 Contra Costa canyon back of Nortonville Mines (e of Mount Diablo); Inner South Coast Ranges 304 Comment
  CAS-BOT-BC26818  Amsinckia oxycarpa Alice Eastwood 1921-4-18 10312 a Contra Costa Antioch Comment
  UC24597 Image available Amsinckia tessellata J. Burtt Davy 1895-4-7 931 Contra Costa Antioch; ; Antioch, Contra Costa Co. Comment
  UC762817  Amsinckia tessellata var. gloriosa R. F. Hoover 1935-3-10 317 Contra Costa Kirker Pass Comment
  CDA29026  Anagallis arvensis D. G. Kelch 2006-5-7 6 .156 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  UC2062623  Anagallis arvensis Barbara Ertter 2002-5-11 17835 Contra Costa Southwest base of Mount Diablo, east end of Green Valley Trail at crossing of private drive. Comment
  POM300727  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon: 50 feet above stream. 366 Comment
  UC691829  Androsace elongata subsp. acuta Mary L. Bowerman 1932-3-12 1116 Contra Costa Alamo Canyon , Alamo Canyon (Mount Diablo) 365 Comment
  JEPS112258  Anemopsis californica D. G. Kelch 2004-6-6 04 .226 Contra Costa Martinez - Train Station; Downtown Martinez. Alhambra Creek near bay and railroad station. Comment
  JEPS12265  Anemopsis californica J. W. Blankinship 1913-6-16 Contra Costa Walwood, Ygnacio Valley Ygnacio Valley; Walwood, Ygnacio Valley Comment
  UC407051  Anemopsis californica Rimo Bacigalupi 1926-4-30 1347 Contra Costa about 3 mi e of Walnut Creek (on Mount Diablo Road); Mount Diablo Road Comment
  UC672438  Anemopsis californica Herbert L. Mason 1929-9-21 5437 Contra Costa 3 mi above Clayton (Marsh Creek Road); Marsh Creek Road Comment
  CAS-BOT-BC400258  Anemopsis californica Miss E. Cannon 1892-6-6 s.n. Contra Costa Marshall Valley, foot of Mt. Diablo Comment
  UC692565  Angelica californica Mary L. Bowerman 1931-6-2 915 Contra Costa Mount Diablo, Gregory Ranch Road Mount Diablo; , Gregory Ranch Road 518 Comment
  UC1795764  Anthriscus caucalis Barbara Ertter, Lisa Schultheis 1995-4-27 14015 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  NY67842  Antirrhinum elmeri A. D. E. Elmer 06 1903 4809 Contra Costa Mt. Diablo Comment
  JEPS107090  Antirrhinum majus Barbara Ertter, Brad Olson 1994-5-7 12744 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1795735  Antirrhinum majus Barbara Ertter, Brad Olson 1994-5-7 12744 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1614334  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Charles M. Belshaw 1935-6-24 1026 Contra Costa Sobrante Hills Comment
  JEPS112078  Aphanes occidentalis D. G. Kelch 2003-4-3 03 .347 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  UC2062618  Aphanes occidentalis Barbara Ertter with Save Mount Diablo outing 2003-5-8 18163 Contra Costa Mangini property on knoll west of Mount Zion, NW corner of Mount Diablo. Comment
  UC2028980  Apiastrum angustifolium Barbara Ertter 2000-5-14 17018 Contra Costa Donner Basin on north side of Mount Diablo, upper end of Falls Trail near junction of Cardinet Oaks Road. Comment
  UC2046342  Apium graveolens Barbara Ertter July 1999 s.n. Contra Costa Cerrito Creek just east of Pierce Street. Alameda/Contra Costa County line. Comment
  CDA15262  Apocynum cannabinum G. F. Hrusa, D. Crowe 1998-5-8 14393 Contra Costa Sacramento Delta; Along Antioch-Pittsburg highway adjacent to E end of Dow Chemical property in Pittsburg. Comment
  POM203649  Aquilegia formosa var. truncata J. T. Howell 1933-5-14 11253 Contra Costa Hills east of St. Mary's college Comment
  CDA19724  Arabis breweri unknown 1937-4-18 Contra Costa Northern California; Mt. Diablo. 0 Comment
  CAS-BOT-BC128689  Arbutus menziesii Alice Eastwood 1922-3-17 11081 Contra Costa Mt. Diablo Comment
  CHSC24747  Arbutus menziesii G. Strang 1976-4-17 14 Contra Costa Pinehurst road 3.5 mi NW of Canyon School on SE facing bank. 152 Comment
  UC400150  Arbutus menziesii Ynes Inexia 1929-4-21 2382 Contra Costa Moraga Valley Comment
  RSA21875  Arctostaphylos andersonii var. pallida Joseph A. Ewan 1934-1-7 8162 Contra Costa Head of San Leandro Creek above Oakland. Comment
  JEPS19884  Arctostaphylos auriculata W. L. Jepson 1922-5-23 9662 Contra Costa Head of Sycamore Creek Monte Diablo Comment
  JEPS38915  Arctostaphylos auriculata Mary L. Bowerman 1932-2-13 1086 Contra Costa on ridge between main forks of canyon Mount Diablo; , Alamo Canyon Comment
  NY8229  Arctostaphylos auriculata A. Eastwood 1903-2-22 3161 Contra Costa Mt. Diablo Comment
  RSA622478  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27600 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622479  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27595 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622483  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27593 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  RSA622484  Arctostaphylos auriculata Jon E. Keeley 1996-6-24 27596 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
Read comments
Jan 30 2013
  UC1200413  Arctostaphylos auriculata Edward Lee 1936-1-12 1713 Contra Costa w-facing slope immediately s Nortonville Comment
  UC1485916  Arctostaphylos auriculata H. Stout and T. Wainwright 1980-3-27 2 Contra Costa 1 mi s Morgan Territory Rd. (on ridge-top); Mallory Ranch 609 Comment
  UC697792  Arctostaphylos auriculata Mary L. Bowerman 1932-9-5 1546 Contra Costa near fire trail which runs s from large spur (on meridian) heading into Sycamore Canyon; Mount Diablo, Inner Black Hills Comment
  UC75347  Arctostaphylos auriculata Alice Eastwood 1903-5-31 3161 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC23598  Arctostaphylos crustacea C. Hart Merriam 1919-8-24 s.n. Contra Costa Las Trampas Peak Comment
  SEINET11989690  Arctostaphylos crustacea N. Havlik, Knight, W. 1982-1 4549 Contra Costa Briones Regional Park adjacent to Russell Tree Farm 328 Comment
  CAS-BOT-BC24808  Arctostaphylos glandulosa subsp. glandulosa C. Hart Merriam 1919-8-24 s.n. Contra Costa Las Trampas Peak. Comment
  JEPS38723  Arctostaphylos glauca W. L. Jepson 1916-11-12 6854 Contra Costa Mitchell Canyon Mt. Diablo Comment
  RSA632818  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27585 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632823  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27581 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  RSA632824  Arctostaphylos laevigata Jon E. Keeley 1996-6-24 27591 Contra Costa Above Rock City, Mt. Diablo. 540 Comment
  CAS-BOT-BC38877  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-1 34012 Contra Costa Sandstone hills, S. slope, Mt. Diablo 609 Comment
  CDA9746  Arctostaphylos manzanita subsp. laevigata D. G. Kelch, D. A. Weinstein 1995-3-6 s.n. Contra Costa Rock City. Mt. Diablo. Comment
  JEPS38920  Arctostaphylos manzanita subsp. laevigata Mary L. Bowerman 1930-6-18 349 Contra Costa Rock City Canyon Mount Diablo Comment
  UC82944  Arctostaphylos manzanita subsp. laevigata Katharine Brandegee 1889-1 5 Contra Costa Antioch Comment
  UC876425  Arctostaphylos manzanita subsp. laevigata Lewis S. Rose 1934-2-28 34040 Contra Costa 8 mi ne Danville (s slope of mt., type locality); Mt. Diablo Comment
  CAS-BOT-BC24382  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1980-3-16 3713 Contra Costa Opposite 5996 Skyline Drive, El Sobrante. Comment
  CAS-BOT-BC24391  Arctostaphylos manzanita subsp. manzanita Walter Knight 1979-12-9 3717 Contra Costa Morgan Territory Regional Land Bank. Above rimrock of Marsh Creek Canyon. Comment
  POM193975  Arctostaphylos manzanita subsp. manzanita J. T. Howell 1926-3-7 1665 Contra Costa Mt. Diablo on old wagon road. Comment
  POM300726  Arctostaphylos manzanita subsp. manzanita Mary L. Bowerman 1932-1-19 1074 Contra Costa Inner Black hills, at west end of chaparral: Just over crest of ridge on north-facing slope. Comment
  JEPS98840  Arctostaphylos tomentosa subsp. crustacea Walter Knight, Irja Knight, James B. Roof, R. Gankin, R. Hildreth 1964-10-7 Contra Costa near Rock City; Mt. Diablo Comment
  RSA202867  Arctostaphylos tomentosa subsp. crustacea Edward Lee 1935-12-28 1703 Contra Costa Western end of Las Trampas Ridge Comment
Read comments
Jul 2 2011
  UC549411  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 626 Contra Costa Moraga Ridge Comment
  UC549467  Arctostaphylos tomentosa subsp. crustacea J. E. Adams 1934-3-9 636 Contra Costa Moraga Ridge Comment
  UC692223  Arctostaphylos tomentosa subsp. crustacea Mary L. Bowerman 1932-3-20 1123 Contra Costa toward top middle ridge (ne fork of canyon); Mt. Diablo, Sycamore Canyon Comment
  CDA22411  Aristolochia californica D. G. Kelch, A. G. Murdock 2003-2-7 3 .034 Contra Costa Carquinez Strait Region; McEwen Road. Comment
  SJSU1772  Aristolochia californica J. B. Youngberg 1956-4-28 357 Contra Costa 6 mi E of Orinda 198 Comment
  OBI20502  Aristolochia californica Neil Havlik 1968-3-26 95 Contra Costa Botanical Garden, Charles Lee Tilden Regional Park, E of Berkeley Comment
  POM87995  Aristolochia californica H. M. Hall 1900-3-23 s.n. Contra Costa Lauterwasser Creek Comment
  CAS-BOT-BC82594  Arnica lanceolata subsp. prima H. M. Hall; H. P. Chandler 1900-7-1 649 Contra Costa South Fork of San Joaquin River Comment
  UC1949095  Artemisia biennis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19800 Contra Costa upper (south) end of San Pablo Dam Reservoir northwest of Orinda Comment
  JEPS36980  Artemisia californica W. L. Jepson 1898-10-18 Contra Costa Mount Diablo Comment
  UC691664  Artemisia californica Mary L. Bowerman 1930-9-27 469 Contra Costa 2 mi from entrance to Mt. Diablo State Park (North Road); Mount Diablo Comment
  UC697143  Artemisia douglasiana Mary L. Bowerman 1932-9-17 1582 Contra Costa w fork Donner Canyon; Mount Diablo Comment
  CAS-BOT-BC90295  Artemisia douglasiana John Thomas Howell 1925-9-19 1467 Contra Costa East side of Moraga Ridge near south end, Oakland Hills Comment
  CAS-BOT-BC90296  Artemisia douglasiana Mary L. Bowerman 1932-9-17 1582 Contra Costa Donner Canyon, west fork Comment
  CAS-BOT-BC146259  Arundo donax Walter Knight; et al 1978-10-11 3328 Contra Costa Browns Island. Between South Landing and Alder Point. Comment
  UC543763  Asarum caudatum Herbert L. Mason 1925-9-27 2236 Contra Costa San Leandro Canyon (Redwood Canyon); Oakland Hills Comment
  UC1123499  Asclepias californica C. M. Belshaw 1936-5-15 2131 Contra Costa 1/2 mi wsw Stewartsville; Mt. Diablo Quadrangle Comment
  UC2027815  Asclepias californica Barbara Ertter with Holly Forbes 1997-4-20 15553 Contra Costa North base of Mount Diablo, trail to Back Creek from Mitchell Canyon trailhead. Comment
  JEPS100125  Asclepias fascicularis A. Langston 2003-7-24 AL 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SEINET10741688  Asclepias fascicularis Barbara J. Ertter, M. Bowerman; Lisa Schultheis 1996-7-5 Ertter 14916 Contra Costa Northwest base of Mount Diablo, access to Foothills Regional Park from North Gate Road along Little Pine Creek, streamside vegetation. Comment
  UCSB22010  Asclepias fascicularis Olson, Glen 1968-7-5 Contra Costa 0.1 mile off the end of Broadmore Court, 0.2 mile north of its junction with St. Mary's Rd. Comment
  JEPS87983  Asparagus asparagoides Barbara Ertter 1991-5-12 9817 Contra Costa sw corner El Cerrito (along old R.R. right-of-way between bay & salicornia marsh, Point Isabel Regional Shoreline, on San Francisco Bay); San Francisco Bay Comment
  CAS-BOT-BC478832  Asparagus officinalis Walter Knight; Joanne Dean 1978-8-14 3128 Contra Costa Brown's Island Comment
  RSA417743  Aster radulinus M. B. Dunkle 1931-7-18 2532 Contra Costa Strawberry Canyon, Berkeley 152 Comment
  UC1606355  Astragalus asymmetricus Barbara Ertter with Dianne Lake 1991-8-18 10678 Contra Costa nw Bull Valley staging area (Carquinez Strait Regional Shoreline e of Crockett); Carquinez Strait Regioinal Shoreline e of Crockett Comment
  UCD148254  Astragalus asymmetricus Robert E. Preston 2013-6-21 2916 Contra Costa 3.9 mi SW of Byron. 140 Comment
  CAS-BOT-BC180527  Astragalus asymmetricus Ira L. Wiggins 1930-4-17 4562 Contra Costa Near Montain House, Altamont Pass. Comment
  CAS-BOT-BC180570  Astragalus asymmetricus C. Hart Merriam 1906-9-13 s.n. Contra Costa Byron Springs Comment
  UC13350  Astragalus didymocarpus J. Burtt Davy 1895-4-7 934 Contra Costa Antioch Comment
  JEPS54616  Astragalus didymocarpus var. didymocarpus F. T. Bioletti 1892-1 Contra Costa Byron Comment
  UC692650  Astragalus gambelianus Mary L. Bowerman 1931-4-4 643 Contra Costa Mount Diablo Mount Diablo (North Road) Comment
  UC1199091  Astragalus tener var. tener J. P. Tracy 1900-3-24 611 Contra Costa Low ground near Stege. (region about San Francisco Bay); , near Stege. 3 Comment
  UC517970  Athysanus pusillus John Thomas Howell 1931-3-10 5754 Contra Costa 7 mi from Clayton (on Livermore Road, e side of Mount Diablo); Mount Diablo Comment
  CDA9508  Atriplex argentea D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .235 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  RSA452692  Atriplex argentea L. S. Rose 1932-10-2 32660 Contra Costa Byron. Comment
  CAS-BOT-BC168564  Atriplex cordulata Walter Knight 1977-7-4 s.n. Contra Costa Black Diamond Mines Regional Preserve near Antioch. About 1 mile south of Contra Loma Regional Park 45 Comment
  CAS-BOT-BC168541  Atriplex coronata R. E. Frenkel 1964-7-10 648 Contra Costa On Balfour Road, 0.2 miles west of Bixler Road 6 Comment
  POM181083  Atriplex coronata J. T. Howell 1930-9-28 5503 Contra Costa 5.4 miles from Byron on Marsh Creek Road. Comment
  RSA454002  Atriplex coronata E. E. Stanford 1930-08 1869 Contra Costa near Old River. Comment
  JEPS65178  Atriplex fruticulosa L. R. Heckard 1971-4-15 2489 Contra Costa in crack of old road pavement at intersection of Holey Road s Byron; s of Byron Comment
  CDA23264  Atriplex fruticulosa T. Sawyer 1965-3-23 Contra Costa Armstrong Road. 0 Comment
  UCD97408  Atriplex fruticulosa John Thomas Howell 1972-6-29 48917 Contra Costa on Bron Hot Springs Road southeast of Byron. Comment
  JEPS25154  Atriplex leucophylla G. Thomas Robbins with John Weiler 1959-5-23 4024 Contra Costa on breakwater northwestern extension Brooks Island (Richmond); San Francisco Bay, , Brooks Island Comment
  JEPS68929  Atriplex prostrata Edward Lee 1934-9-30 1225 Contra Costa Moraga; just se of station Comment
  JEPS111808  Atriplex triangularis D. G. Kelch 2003-8-13 03 .95 Contra Costa Martinez Marsh 1 Comment
  UC691225  Avena barbata Mary L. Bowerman 1932-4-16 1355 Contra Costa n Eagle Point; Mount Diablo, Eagle Point Ridge Comment
  UCD56220  Avena barbata A. A. Beetle 1942-3-22 2929 Contra Costa Brooks Island in San Francisco Bay. Comment
  CDA1747  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park, along fire road north of Juniper Campground. Comment
  CDA20386  Avena fatua P. Akers 2002-5-11 s.n.- 3 d Contra Costa Northern California; Mt Diablo Rd. 205 Comment
  JEPS84882  Avena fatua G. D. Barbe 1983-5-22 4081 Contra Costa hillside along fire road n. of Juniper Campground; Mount Diablo State Park 877 Comment
  UC697125  Avena fatua Mary L. Bowerman 1931-5-7 809 Contra Costa North Peak Mount Diablo Comment
  UCD38559  Avena fatua var. glabrata Beecher Crampton 1956-5-14 3418 Contra Costa 0.5 mile west of Martinez. Comment
  UCD56084  Avena occidentalis G. Douglas Barbe 1983-5-22 4081 Contra Costa Mount Diablo State Park. 877 Comment
Read comments
Nov 19 2009
  UC1619933  Azolla filiculoides Barbara Ertter, Brad Olson 1991-9-28 10849 Contra Costa S end San Pablo Reservoir between Orinda and El Sobrante 97 Comment
  POM301043  Baccharis douglasii Mary L. Bowerman 1942-10-4 3852 Contra Costa Russelman Park Road 290 Comment
  JEPS111734  Baccharis glutinosa D. G. Kelch 2004-9-2 04 .337 Contra Costa Pacheco Marsh Marsh east of Martinez and I-680 and east of lone tree Marsh. Rhizomatous herb in marsh, 1 m tall 5 Comment
  UC697204  Baccharis glutinosa Mary L. Bowerman 1942-10-4 3852 Contra Costa Mount Diablo, Russelman Park Road 289 Comment
  CAS-BOT-BC98611  Baccharis pilularis Walter Knight; I. Knight; S. Rae; B. Doyle; J. T. Howell; E. McClintock 1978-9-5 3208 Contra Costa Browns Island Comment
  CAS-BOT-BC98614  Baccharis pilularis John Thomas Howell; Gordon H. True 1972-6-29 48926 Contra Costa Near Byron Hot Springs (site) Comment
  JEPS75550  Baccharis pilularis P. F. Yorks 1974-9-28 368 Contra Costa n of, (1.6 km s of Bear Cr. Rd on Hampton Road in Hampton) Briones Reservoir; Hampton 180 Comment
  UC579857  Baccharis pilularis Annetta Carter 1936-4-19 1120 Contra Costa Red Rock San Francisco Bay Comment
  JEPS32259  Balsamorhiza deltoidea R. F. Hoover 1939-4-13 4015 Contra Costa head of Markley Canyon (w branch) Markley Canyon Comment
  RSA0033933  Balsamorhiza deltoidea Barbara Ertter, Holly C. Forbes 1997-4-20 15564 Contra Costa North base of Mount Diablo at NE base of Eagle Ridge. Lower end of Eagle Peak Trail. Comment
  UC2028394  Balsamorhiza deltoidea Barbara Ertter with Richard K. Brummitt 1998-5-13 16139 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, south leg of Loughler Loop Trail just west of pass over central ridge, NW-facing slope Comment
  CAS-BOT-BC16380  Barbarea orthoceras Alice Eastwood 1915-5-30 4495 Contra Costa Mount Diablo. Comment
  CDA2977  Bassia hyssopifolia D. G. Kelch, A. G. Murdock 2003-8-13 3 .094 Contra Costa Carquinez Strait Region; Martinez Marsh Comment
  CDA15255  Bellardia trixago G. F. Hrusa, D. Crowe 1998-5-8 14386 Contra Costa Sacramento Delta; E end of Dow Chemical property in Pittsburg. Comment
  CDA28899  Bellardia trixago D. G. Kelch, Troy MacGregor 2009-5-24 9 .3 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS100152  Bellardia trixago G. Smick 2003-5-6 GAS 171 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC103480  Bellardia trixago Mr. Skelton 1901-5-12 Contra Costa Martinez Comment
  POM300991  Bellardia trixago Mary L. Bowerman 1938-5-25 3632 Contra Costa North Road 1.6 miles from North Gate where stream crosses road. 152 Comment
  SD26790  Bellardia trixago Paul Covel May 1938 Contra Costa Bet. Martenez and Crockett Comment
  UC691926  Berberis pinnata Mary L. Bowerman 1931-2-22 517 Contra Costa e fork Sycamore Canyon; Mt Diablo Comment
  JEPS111524  Beta vulgaris D. G. Kelch 2005-5-5 05 .209 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC2012948  Beta vulgaris Barbara Ertter 1990-10-24 9685 Contra Costa Martinez Regional Shoreline on Carquinez Strait. Comment
  CAS-BOT-BC102106  Bidens cernua Peter Raven 1948-11-28 172 Contra Costa Sloughs, L. San Joaquin R. Comment
  SEINET3146091  Bidens laevis L. S. Rose 1938-10-28 38311 Contra Costa Byron 3 Comment
  UCD150895  Bidens laevis James A. Neilson Jr.; Samuel A. Bamberg 1972-10-22 3493 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  NY31019  Blennosperma californicum R. F. Hoover 1938-2-21 2750 Contra Costa Byron Hot Springs Comment
  NY30996  Blennosperma californicum R. C. F. Bacigalupi 1957-3-27 5761 Contra Costa At junction of Lone Tree Way and Hillcrest Ave. (rd.), about 0.5 mile west of Lone Tree School 39.3 Comment
  SEINET3386108 Image available Blennosperma californicum Lewis S. Rose 1933-3-10 33008 Contra Costa Marsh creek, open hillsides Comment
  JEPS104714  Blennosperma nanum John L. Morrison 1937-3-6 1972 Contra Costa low hills S of Antioch Comment
  UC1543131  Blennosperma nanum var. nanum Donald G. Nelson 1937-3-30 459 Contra Costa about halfway between Clayton and Byron, Marsh Creek Highway Clayton Comment
  UC565479  Blennosperma nanum var. nanum H. L. Mason 1929-3-15 5045 Contra Costa just s of Nortonville Comment
  UC579840  Blennosperma nanum var. nanum Annetta Carter 1937-3-7 1223 Contra Costa one mile e Danville; Sycamore Valley Comment
  UC691494  Blennosperma nanum var. nanum Mary L. Bowerman 1932-3-12 1107 Contra Costa field a little e of, s of Diablo Bret Harte Memomorial Comment
  UC762545  Blennosperma nanum var. nanum R. F. Hoover 1938-2-27 2784 Contra Costa Danville Comment
  UC1119055  Blepharizonia laxa G. T. Nordstrom 1937-10-28 1403 Contra Costa 1.6 mi nne of Somersville (Mt. Diablo); Mt. Diable 182 Comment
Read comments
Aug 6 2012
  JEPS18817  Blepharizonia plumosa R. F. Hoover 1937-9-2 2711 Contra Costa 1 mi w Antioch Comment
  CAS-BOT-BC15963  Boechera breweri subsp. breweri Dr. A. Kellogg; W. G. W. Harford 1868-4-28 41 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC15966  Boechera breweri subsp. breweri A. D. E. Elmer 1903-6-1 5096 Contra Costa Mount Diablo. Comment
  UC565476  Boechera breweri subsp. breweri Herbert L. Mason 1926-3-7 2796 Contra Costa Summit of Mt. Diablo Mt. Diablo Comment
  CAS-BOT-BC15959  Boechera breweri subsp. breweri E. W. Hicks 1917-3-24 111 Contra Costa Mount Diablo. On the western slope of the mountain. 1067 Comment
  POM194201  Boisduvalia glabella J. T. Howell 1929-7-20 4331 Contra Costa Pittsburg Comment
  UCD140044  Bolboschoenus maritimus subsp. paludosus M. Wiesendanger 1926-6-1 1529 Contra Costa Richmond. Comment
  CAS-BOT-BC31392  Bolboschoenus robustus John Thomas Howell 1932-10-8 10794 Contra Costa Tidal Flat at mouth of Rodeo Creek. Comment
  UC2028510  Bolboschoenus robustus Barbara Ertter with Tony Morosco 1998-9-18 16432 Contra Costa West slope Lime Ridge Open Space northwest of Mount Diablo, just southeast of Ygnacio Valley Road, southwest of sand quarry Comment
  PASA1924  Bowlesia lobata Annetta Carter 1929-3-31 Contra Costa Hills north on Mt. Diablo. Near Clayton Comment
  JEPS53247  Brassica nigra W. L. Jepson 1921-5-22 9199 Contra Costa Mount Diablo 1/2 way up roadway grade to summit Mount Diablo 1173 Comment
  CDA23561  Brassica rapa D. G. Kelch 2008-3-3 8 .029 Contra Costa Carquinez Strait; Crockett. Under Zampa (Carquinez) Bridge. Comment
  UC34624  Brickellia californica V. King Chesnut 1887-9-11 Contra Costa Mt. Diablo Comment
  JEPS116934  Brodiaea David Gowen 2008-4-27 874 Contra Costa Contra Loma Regional Park entrance at Black Diamond Mines Regional Preserve parking area at Frederickson Lane, north of parking area. Comment
  UC1555378  Brodiaea elegans subsp. elegans Jerry Powell 1988-5-18 1538 Contra Costa meadow west Richmond, Point Molate Comment
  JEPS127664  Brodiaea terrestris subsp. terrestris Barbara Ertter with David Gowen and Michael Park 2017-5-2 22808 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  SBBG117257  Bromus B. Crampton 1960-3-29 5481 Contra Costa corner of Carlson and Lassen Boulevards, El Cerrito Comment
  UCD37380  Bromus Beecher Crampton 1960-3-29 5481 Contra Costa Contra Costa County, city of El Cerrito, corner of Carlson and Lassen Boulevards. Comment
  UCD57815  Bromus berteroanus Beecher Crampton 1956-5-14 3415 Contra Costa 1/2 mile west of Martinez. Comment
  UC2032822  Bromus carinatus Doran, Andrew Scott 2012-3-20 692 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  UC2028538  Bromus catharticus Barbara Ertter 1998-2-15 15917 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Edge of Bob Pond and picnic area at Old Borges Ranch. Comment
  UC60184  Bromus diandrus Jos. Burtt Davy 1899-4-19 7867 Contra Costa Moraga Valley Comment
  UCD58550  Bromus diandrus A. A. Beetle 1942-3-22 2932 Contra Costa Brooks Island in San Francisco Bay. Comment
  CAS-BOT-BC156068  Bromus diandrus Mary L. Bowerman 1935-5-25 3068 Contra Costa South of the summit and east of the haripin turn on the highway. 1066 Comment
  CHSC116659  Bromus hordeaceus Lowell Ahart; Josephine Guardino 2016-4-19 20791 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. Along the sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  CHSC21617  Bromus hordeaceus Willis Ball 1974-4-21 429 Contra Costa Contra Loma Regional Park. In area #6. On e side of Contra Loma Blvd. ca. 300 yds. s of main boat ramp at s end of lake. One yd. off road. 45 Comment
  UC692343  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Mount Diablo, Pine Canyon, 1 mi above spring Pine Canyon; Mount Diablo, Pine Canyon Comment
  UCD58767  Bromus hordeaceus L. S. Smith 1914-5-9 s.n. Contra Costa Mt. Diablo. West slope. Comment
  CAS-BOT-BC155469  Bromus hordeaceus Mary L. Bowerman 1931-5-13 839 Contra Costa Mount Diablo. Pine Canyon floor one mile above the sulphur springs. Comment
  UC2070614  Bromus laevipes Barbara Ertter with John Ginochio 2002-6-1 17943 Contra Costa Ginochio Ranch in Arroyo del Cerro on NW side of Mount Diablo, connector road between Government Road and Olofson Homestead. Comment
  CAS-BOT-BC162352  Bromus madritensis Mary L. Bowerman 1935-5-16 2991 Contra Costa Mount Diablo. Russelman Park, at end of road. Comment
  CAS-BOT-BC162353  Bromus madritensis Mary L. Bowerman 1935-4-19 2863 Contra Costa Mount Diablo. Near Turtle Rock. 457 Comment
  CAS-BOT-BC162355  Bromus madritensis Mary L. Bowerman 1935-5-3 2961 Contra Costa Sloan Road. 487 Comment
  RSA655138  Bromus marginatus Beecher Crampton 1956-5-14 3393 Contra Costa 7 miles southwest of city of Antioch, just east of old mining town of Nortonville. Comment
  UC677567  Bromus racemosus P. F. Knowles B 72 Contra Costa 1 mi w of Rodeo Comment
  CAS-BOT-BC162018  Bromus racemosus P. F. Knowles 1942-1-1 B 70 Contra Costa 1 mile west of Rodeo. Davis. Comment
  SACT000721  Bromus rubens Annette Waters 1958-5-13 Contra Costa 3 miles north of sign ""South Entrance of Park 4 miles""; at edge of road in dry sandy soil; few heads greenish but mostly purple Comment
  UCD59614  Bromus rubens Beecher Crampton 1956-5-14 3410 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  CAS-BOT-BC161947  Bromus rubens Mary L. Bowerman 1933-3-18 1751 Contra Costa Mount Diablo below the chaparral belt, a little east of the meridian. 548 Comment
  CAS-BOT-BC161953  Bromus rubens Mary L. Bowerman 1931-5-7 810 Contra Costa Mount Diablo. North Peak. Comment
  UC2028418  Bromus sterilis Barbara Ertter 2001-5-10 17637 Contra Costa Mount Diablo, Juniper Trail above Laurel Dell Comment
  UC2029187  Bromus sterilis Barbara Ertter 2000-5-14 17013 Contra Costa Donner Basin on north side of Mount Diablo, Falls Trail between Donner Creek and Wild Oat Canyon Comment
  UC1103346  Bromus trinii J. P. Tracy 1900-5-24 613 Contra Costa San Francisco Bay Region, Point Richmond Point Richmond; San Francisco Bay Region, Point Richmond 3 Comment
  UC53715  Bromus trinii Jos. Burtt Davy 1900-3-24 6539 Contra Costa Point Richmond Comment
  UC2028525  Calamagrostis rubescens Barbara Ertter 1997-11-1 15881 Contra Costa South side Mount Diablo, near Balancing Rock on Knobcone Point Road Comment
  CAS-BOT-BC233994  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa Head of Markley Canyon (west branch) Comment
  UC765774  Calandrinia breweri R. F. Hoover 1939-4-13 4019 Contra Costa head west branch Markley Canyon Comment
  CAS-BOT-BC438373  Calandrinia ciliata Mary L. Bowerman 1939-5-2 3741 Contra Costa Mount Diablo. By road to Barbecue Terrace (off South Road) 563 Comment
  CAS-BOT-BC438364  Calandrinia ciliata Brandegee No date on label s.n. Contra Costa Antioch Comment
  JEPS111740  Calendula arvensis D. G. Kelch 2005-3-11 05 .40 Contra Costa McEwen Road Carq. Shoreline EBRP. West of Martinez Highschool. 192 Comment
  RSA721205  Callitriche heterophylla var. bolanderi Barbara Ertter, Mary L. Bowerman 1995-5-7 14034 Contra Costa Three-Springs Trail on NE side of Mt. diablo SE of Clayton; pond W side of road in grassy flat. Comment
  UC2027722  Callitriche marginata Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15512 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC3357  Calochortus albus W. H. Brewer 1862-5-24 1157 Contra Costa se of Mt. Diablo Comment
  CAS-BOT-BC492125  Calochortus amabilis I. Williams 1920-4-29 s.n. Contra Costa Mount Diablo Comment
  JEPS102916  Calochortus argillosus Barbara Ertter with Dan Norris 1998-6-18 16209 Contra Costa South Gate Road ca 1 mi from entrance Mount Diablo 304 Comment
  JEPS112497  Calochortus luteus D. G. Kelch 2004-5-7 04 .180 Contra Costa Ca ada del Cierbo 40 Comment
  JEPS112509  Calochortus luteus A. G. Murdock 2003-6-2 77 Contra Costa Crockett - 5th St. Prairie 85 Comment
  UC2027929  Calochortus luteus Barbara Ertter with Dorothy Frantz 2001-5-10 17640 Contra Costa Diablo Foothills Regional Park, Pine Creek south of Castle Rock Recreation Area. Comment
  CAS-BOT-BC132496  Calochortus pulchellus Alice Eastwood 1914-5-30 4442 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC132500  Calochortus pulchellus Harold V. Manor 1913-5-18 s.n. Contra Costa Mt. Diablo Comment
  SBBG54485  Calochortus pulchellus L. R. Abrams 1921-5-25 8053 Contra Costa Mt Diablo, 4.5 mi from summit Comment
  UC194919  Calochortus pulchellus H. M. Hall 1916-5-30 10132 Contra Costa near Pine Canyon; Mt. Diablo 365 Comment
  CDA19935  Calochortus splendens V. Guise 2002-6-25 PDR P 134004 Contra Costa Northern California; Old School House Rd, Tasajara. 0 Comment
  JEPS61718  Calochortus splendens W. L. Jepson 1919-6-8 8326 Contra Costa Mt. Diablo Comment
  UC691882  Calochortus splendens Mary L. Bowerman 1934-6-9 2548 Contra Costa s of Fossil Ridge 1700 ft. point; Mount Diablo Comment
  RSA68630  Calochortus venustus Frank W. Peirson 1923-7-1 3682 Contra Costa Mt. Diablo. Comment
  CAS-BOT-BC270072  Calycadenia multiglandulosa H. M. Hall 1916-8-16 10274 Contra Costa Horse Valley, 9 km S of Antioch Comment
  UC88982  Calycadenia multiglandulosa K. Brandegee 1884-7-1 Contra Costa Antioch Comment
  UC697175  Calycadenia truncata Mary L. Bowerman 1936-9-1 3536 Contra Costa between North Peak and the mouth of Perkins Canyon North Peak; Mount Diablo 487 Comment
  UC23184  Calystegia malacophylla subsp. pedicellata Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  JEPS78819  Calystegia purpurata Edward Lee 1936-5-24 2160 Contra Costa about 2 mi se Curry Canyon (Marsh Creek, Morgan Territory); Morgan Territory, se of Curry Canyon, Marsh Creek Comment
  SD225764  Calystegia purpurata subsp. purpurata R. K. Brummitt, J Stother & B. Baldwin 1997-5-27 19605 Contra Costa Mt Diablo, W side, Deer Flat Road 800 Comment
  UC1057486  Calystegia sepium subsp. binghamiae G. Thomas Robbins 1940-5-19 327 Contra Costa San Joaquin River e Antioch; San Joaquin River e of Antioch Comment
  UC1191638  Calystegia sepium subsp. binghamiae Malcolm A. Nobs, S. Galen Smith 1949-7-8 941 Contra Costa 4 mi n Kingston (Otto's Black Bass Resort); n of Kingston, Otto's Black Bass Resort Comment
  CAS-BOT-BC202026  Calystegia sepium subsp. limnophila J. W. Congdon 1893-7-30 s.n. Contra Costa Martinez Comment
  CDA15226  Calystegia sepium subsp. limnophila G. F. Hrusa, D. Crowe 1998-5-8 14355 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  UCD163494  Calystegia sepium subsp. limnophila D. Slakey; CNPS Volunteers 2015-9-12 227 Contra Costa Browns Island, northern part of Crooked Slough. 0 Comment
  CDA39896  Calystegia sepium subsp. limnophila T. C. Fuller 1964-11-6 12807 Contra Costa Northeast side of Bethel Island. 0 Comment
  RSA710325  Calystegia subacaulis R. K. Brummitt, Barbara Ertter, N. A. Brummitt 1998-5-13 19841 Contra Costa S of Antioch, Black Diamond Mine Regional Park. 400 Comment
  RSA0059779  Calystegia subacaulis Thekla Mohr 1917-07 3164 Contra Costa Mt. Diablo. Comment
  UC1795008  Calystegia subacaulis subsp. subacaulis R. K. Brummitt and B. Ertter 1998-5-13 19835 Contra Costa Mt Diablo, near foot of southern ascent road 260 Comment
  UC2028347  Camissonia contorta Barbara Ertter 1991-5-5 9780 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, ridge E of Coal Canyon, N-facing slope Comment
  UC35394  Camissonia contorta Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  JEPS107069  Camissonia intermedia Barbara Ertter, Chris Thayer 1995-4-25 13989 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Devil's Slide area of Sycamore Canyon, roadside through chaparral zone. 304 Comment
  RSA186718  Camissonia intermedia D. E. Breedlove 1963-5-2 4698 Contra Costa At entrance to Mt. Diablo State Park 4 miles east of Danville Comment
  JEPS111561  Camissonia ovata A. G. Murdock 2004-3-19 221 Contra Costa Luzon: Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC635400  Camissoniopsis intermedia H. L. Mason 1928-4-29 4436 Contra Costa Sycamore Canyon Mount Diablo (s slope of mt.) Comment
  UC1051246  Campanula isophylla N. Floy Bracelin 1942-9-9 2279 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC37392  Cardamine californica John Thomas Howell 1931-3-10 5757 Contra Costa East side of Mount Diablo 7 miles from Clayton. Comment
  JEPS111869  Cardamine californica D. G. Kelch 2005-2-28 05 .9 Contra Costa Vaca Canyon Vaca Canyon Alhambra Valley Road Bay Forest road cut with Arbutus 165 Comment
  UC691077  Cardamine californica Mary L. Bowerman 1930-6-10 303 Contra Costa Mount Diablo Comment
  UC762889  Cardamine californica R. F. Hoover 1938-2-21 2754 Contra Costa Point Richmond Comment
  UC2028278  Cardamine californica Barbara Ertter 1999-3-21 16490 Contra Costa NW corner of Miller Knox Regional Shoreline, Potrero Hills SW of Richmond; abandoned trail on north side of crest. Comment
  POM272920  Cardamine californica var. integrifolia Lyman Benson 1931-3-18 2657 Contra Costa Martinez; Mt Range: South Coast; Watershed: Sacramento River. 91 Comment
  UC10419  Cardamine californica var. integrifolia W. H. Brewer 1862-5-1 1039 Contra Costa Walnut Creek Comment
  UC2070647  Cardamine flexuosa Barbara Ertter with David Gowen 2006-4-14 18668 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mount Diablo, SE of Ygnacio Valley Road. Comment
  UC1795823  Cardamine oligosperma Barbara Ertter, Gary Schoolcraft, Tony Morosco 1996-4-6 14564 Contra Costa Black Hawk Ridge Rd. along East Fork Sycamore Cr in Mt Diablo State Park, shaded roadside bank on north-facing slope,oak woods. Comment
  UCD114568  Cardamine oligosperma Terri Williamson 1990-4-10 1 Contra Costa 212 Poshard Street, Pleasant Hill. 12 Comment
  UC2070559  Cardamine oligosperma var. oligosperma Barbara Ertter 2003-4-9 18140 Contra Costa Shell Ridge Open Space on west base of Mount Diablo, Indian Creek below Fossil Hill Trail crossing. Comment
  CAS-BOT-BC281735  Carduus pycnocephalus Joseph P. Tracy 1934-4-30 13188 Contra Costa Roadside between Moraga and Lafayette 152 Comment
  UC2028217  Carduus pycnocephalus Barbara Ertter with Christopher Baysdorfer 1998-5-10 16129 Contra Costa West-center Lime Ridge Open Space northwest of Mount Diablo. Comment
  UC1555379  Carduus pycnocephalus subsp. pycnocephalus Jerry Powell 1988-5-18 1536 Contra Costa Pt. Molate, w Richmond Richmond, Pt. Molate Comment
  CDA9484  Carduus tenuiflorus D. G. Kelch, Abigail Moore, Michael Park 2007-5-1 7 .209 Contra Costa Byron Airport. Comment
  UC691373  Carduus tenuiflorus Mary L. Bowerman 1934-6-9 2547 Contra Costa bend by sign reading 4.4 mi to summit Diablo Trail sign (South Road); Mount Diablo 304 Comment
  JEPS25239  Carex barbarae G. Thomas Robbins 1959-8-1 4116 Contra Costa Las Trampas Creek, about 1 1/2 miles SE of St. Mary's College 182 Comment
  UC2029200  Carex densa Barbara Ertter 2003-2-8 18091 a Contra Costa Richmond Field Station (UC-Berkeley) Comment
  UC691962  Carex densa Mary L. Bowerman 1934-4-21 2531 Contra Costa at junction of North and South Roads Canyon Nook Comment
  JEPS105721  Carex densa David Gowen 2004-9-13 161 Contra Costa Mt. Diablo State Park. Johnny Walker Spring, which is ca. .2 mile above the junction of Angel Kerley Rd. (fire trail) and North Gate Rd., approx. 2200' elev. Comment
  UC2070635  Carex densa Barbara Ertter with Kevin Hintsa et al. 2003-4-20 18156 Contra Costa Pine Canyon on west side Mount Diablo, flood-scoured flat above Pine Pond. Comment
  SEINET11268158  Carex globosa Barbara Ertter, Dan Norris 1998-6-18 16230 Contra Costa Black Hawk Ridge Road below Knobcone Point Road, south side of Mount Diablo.; 0 Comment
  UC2070509  Carex globosa Barbara Ertter with Dan Norris 2001-4-8 17594 Contra Costa Lime Ridge Open Space east of Walnut Creek. Comment
  CHSC114386  Carex obnupta D. G. Kelch; Michael Park, Abigail Moore 2007-5-1 7251 B Contra Costa Along the old San Joaquin River Channel, S of Clifton Court Forebay and SE of Byron. 0 Comment
  UC1952822  Carex pendula Barbara Ertter with David Gowen 2010-11-17 20699 Contra Costa southeast part of Lime Ridge Open Space (City of Walnut Creek), lower end of east-facing drainage below Crystyl Ranch Trail ca 1/4 mi N of jct Paraiso Trail Comment
  JEPS111901  Carex praegracilis D. G. Kelch 2005-3-24 05 .64 Contra Costa Point Pinole Southern Pt. Pinole 3 Comment
  JEPS22098  Carex praegracilis G. Thomas Robbins 1958-7-19 3908 Contra Costa at the edge of a small lagoon about 3/4 mi s Pt. San Pablo; San Francisco Bay, Richmond, Potrero San Pablo, Pt. Orient Comment
  CAS-BOT-BC117548  Carex serratodens Lewis Samuel Rose 1935-5-16 35163 Contra Costa Mt. Diablo. Comment
  UC692014  Carex serratodens Mary L. Bowerman 1933-5-3 1986 Contra Costa Alder Creek Mount Diablo 762 Comment
  CAS-BOT-BC117550  Carex serratodens Miss Mary Leolin Bowerman 1930-6-28 400 Contra Costa Lower Silver Spring. Comment
  POM300643  Carex serratodens Mary L. Bowerman 1935-6-1 3120 Contra Costa Mount Diablo: Grapevine Picnic Grounds (by road just below Silver Spring) 854 Comment
  POM300644  Carex serratodens Mary L. Bowerman 1938-6-14 3683 Contra Costa Rocky Point Spring, Mount Diablo. 701 Comment
  UC593503  Carex subbracteata G. L. Stebbins Jr. 1936-5-9 1555 Contra Costa e side Wildcat Canyon; Berkeley Hills Comment
  CDA9650  Castilleja affinis A. G. Murdock, D. G. Kelch 2004-5-28 292 Contra Costa Carquinez Strait; Pinole Peak. Comment
  HSC87801  Castilleja affinis Jennifer Roth 1979-4-29 35 Contra Costa Clayton, Russleman Park Rd. off March Creek Rd. Concord Mt. Diablo Trail Ride Association grounds. 335 Comment
  UC2070591  Castilleja affinis Barbara Ertter with Steve Matson 2003-3-15 18100 Contra Costa Black Diamond Mines Regional Preserve, north slope of Rose Hill. Comment
  JEPS15237  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1956-5-11 5643 Contra Costa near summit of Hampton Road grade (on the Pinole Creek side, over hill n of Bear Creek and leading to Briones Valley School (which is not in Briones Valley)) 220 Comment
  UC525863  Castilleja affinis subsp. affinis Robert W. Gardner 1934-3-30 57 Contra Costa 3 mi s Mt. Diablo Comment
  UC691558  Castilleja affinis subsp. affinis Mary L. Bowerman 1931-3-28 559 Contra Costa above Mitchell Rock (Mount Diablo); Mount Diablo Comment
  HSC101960  Castilleja applegatei subsp. martinii Nikolaus Gillen, Michelle Bihler 2014-3-20 12 Contra Costa Mount Diablo State Park. Eagle Peak Trail. 649 Comment
  UC27146  Castilleja attenuata J. Burtt Davy 1895-4-7 957 Contra Costa Antioch Comment
  CDA41329  Castilleja densiflora subsp. densiflora D. G. Kelch 2003-4-3 3 .372 Contra Costa Carquinez Strait Region; Cummings Skyway. Comment
  UC1819018  Castilleja densiflora subsp. densiflora Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14676 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; grassland/scrub at northeast corner of area. Comment
  CDA41326  Castilleja exserta subsp. exserta D. G. Kelch 2005-4-24 5 .162 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  JEPS17083  Castilleja exserta subsp. latifolia Rimo Bacigalupi with Keith Harrison and G. T. Robbins 1955-5-13 5064 Contra Costa opposite El Cerrito (just to the w of Arlington Avenue and opposite Mira Vista Country Club); Berkeley Hills 198 Comment
  JEPS15165  Castilleja foliolosa R. C. Wilson 1935-3-14 136 Contra Costa Head of Sycamore Creek; Mt. Diablo Quad. 365 Comment
  UC1051331  Castilleja rubicundula subsp. lithospermoides N. Floy Bracelin 1941-6-15 1398 Contra Costa ADELANTE, The Garden of Anson and Anita Blake, Berkeley. Comment
  CHSC57361  Caulanthus lasiophyllus Willis Ball 1975-3-2 451 Contra Costa Contra Loma Regional Park, in are #2. On s side of hill ca. 400 yds w of boat ramp at w side of lake. 60 Comment
  UCD114675  Caulanthus lasiophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CAS-BOT-BC40485  Caulanthus lasiophyllus Bolander 1863-1-1 368 Contra Costa San Pablo Landing. Comment
  CAS-BOT-BC48841  Ceanothus cuneatus Alice Eastwood 1922-3-17 11080 Contra Costa Mt. Diablo Comment
  RSA753076  Ceanothus cuneatus Dylan O. Burge 2007-5-9 DOB- 916 c Contra Costa Mount Diablo State Park: roadside on South Gate Road 1.5 road miles (2.4 km) N of entrance gate, 6.38 km 67 degrees (True) ENE of DAnville. 380 Comment
  UCD124005  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-5-9 916 e Contra Costa Mount Diablo State Park, roadside on South Gate Road, 1.5 road miles (2.4 km) north of entrance gate, 6.38 km 67 deg. (True) ENE of Danville. 380 Comment
  RSA721533  Centaurea melitensis Mary L. Bowerman 1994-6-19 s.n. Contra Costa Mount Diablo, Muir Area. adjacent to road Comment
  JEPS75544  Centaurea solstitialis P. F. Yorks 1974-8-10 362 Contra Costa ca 1.8 km s of Bear Creek Road (on Hampton Road in Hampton Road Natural Reserve, n of Briones Reservoir); Hampton Road Natural Perserve, Briones Reservoir 200 Comment
  RSA351522  Centaurea solstitialis B. C. Templeton 1962-6-20 s.n. Contra Costa Mount Diablo Comment
  UC2028266  Centaurium davyi Barbara Ertter 1999-6-12 16714 Contra Costa West Branch Alamo Creek on south flank of Mount Diablo, along unofficial path running from north spur of Black Hawk Ridge Road to south spur off of Knob Cone Point Road (near powerline). Comment
  JEPS78619  Centaurium muehlenbergii Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3288 Contra Costa Browns Island Comment
  UC691834  Centaurium muehlenbergii Mary L. Bowerman 1930-9-27 463 Contra Costa 2.25 mi by road from Mount Diablo north entrance (west base spring, take trail trough to w, follow to fence and go through); Mount Diablo Comment
  CDA42426  Centranthus ruber D. G. Kelch, Vince Guise 2012-7-26 12 .233 Contra Costa El Sobrante; Circle Dr. Comment
  UC1050885  Centranthus ruber N. Floy Bracelin 1942-5-17 1287 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC288545  Centromadia fitchii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  JEPS35031  Centromadia fitchii W. L. Jepson 1895-9-14 Contra Costa Walnut Creek Comment
  CAS-BOT-BC288537  Centromadia fitchii David D. Keck 1933-11-2 2616 Contra Costa 1 mile E of Nichols, N part of county Comment
  CAS-BOT-BC288543  Centromadia fitchii L. S. Rose 1941-10-13 41464 Contra Costa 1 mile E of Walnut Creek 50 Comment
  UC2029135  Centromadia fitchii Barbara Ertter 2004-9-17 18497 Contra Costa Lime Ridge Open Space in Concord, segment southeast of Treat Boulevard, south of Kingwood Drive. Comment
  UCD148253  Centromadia pungens Robert E. Preston 2013-6-21 2915 Contra Costa 3.5 mi SW of Byron. 72 Comment
  CAS-BOT-BC279204  Centromadia pungens subsp. pungens David D. Keck 1933-11-2 2613 Contra Costa 3 mi. S. of Martinez on road to Pacheco Comment
  CAS-BOT-BC279197  Centromadia pungens subsp. pungens Alice Eastwood 1923-4-28 11666 Contra Costa Byron Springs Comment
  UC2028506  Centromadia pungens subsp. pungens Barbara Ertter with Mary Bowerman, Lisa Schultheis 1998-8-21 16406 Contra Costa North side Shell Ridge Open Space west of Mount Diablo, near pond at Wiget Lane entrance Comment
  UC1178029  Centunculus minimus Herbert L. Mason 1955-7-14 14632 a Contra Costa 1/2 mi e of Antioch Bridge Comment
  UC692408  Cerastium glomeratum Mary L. Bowerman 1931-3-7 545 Contra Costa Mt. Diablo, Sheep Camp Spring Comment
  CAS-BOT-BC137008  Cercocarpus betuloides var. betuloides L. R. Abrams 1910-10-8 4355 Contra Costa Mt. Diablo Summit 1158 Comment
  UC691104  Cercocarpus betuloides var. betuloides Mary L. Bowerman 1931-4-5 677 Contra Costa below Gregory Ranch (Mount Diablo); Mount Diablo Comment
  UC34798  Chaenactis glabriuscula var. glabriuscula W. C. Blasdale 1893-5-13 Contra Costa Antioch Comment
  CAS-BOT-BC284222  Chaenactis glabriuscula var. megacephala Alice Eastwood 1914-3-17 3799 Contra Costa Byron Springs Comment
  UCSB23747  Chamaesyce maculata Olson, Glen 1968-7-15 Contra Costa North side of Saint Mary's Road, 0.4 mile east of its junction with Moraga Rd. 91 Comment
  JEPS99568  Chamaesyce serpillifolia subsp. serpillifolia Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Chase Pond. Comment
  JEPS106991  Cheilanthes intertexta J. Greenhouse with Kevin Hintsa 2004-4-5 5084 Contra Costa Mt. Diablo, Fire Interpretive Trail, Devil's Pulpit 1085 Comment
  UC691914  Chenopodium berlandieri Mary L. Bowerman 1933-8-26 2417 Contra Costa roadside about 2 mi below Rock City; Mount Diablo, Black Hills Comment
  JEPS68928  Chenopodium multifidum Edward Lee 1934-9-30 1222 Contra Costa Moraga; just se of station Comment
  UC1004357  Chlorogalum pomeridianum var. pomeridianum M. S. Cave 1949-6-26 4901 Contra Costa Arlington Avenue n Mira Vista entrance (hillside); Kensington Comment
  CAS-BOT-BC252677  Chorizanthe membranacea M. K. Curran 1884-1-1 s.n. Contra Costa Unspecified Comment
  UC52588  Chorizanthe membranacea W. H. Brewer 1862-5-17 1104 Contra Costa canyon n Monte Diablo; canyon n of Monte Diablo (Mount Diablo?) Comment
  UC188732  Chorizanthe uniaristata M. K. Curran 1884-1 Contra Costa near Mount Diablo; near Mount Diablo Comment
  UCD110095  Chrysolepis chrysophylla var. minor Beecher Crampton 1957-11-20 4652 Contra Costa Alameda County line. Between Round and Redwood Regional Parks, Berkeley Hills. Comment
  UC22848  Cicendia quadrangularis W. H. Brewer 1862-4-24 993 Contra Costa Martinez; near Camp 68 Comment
  UC1041102  Cicuta maculata var. bolanderi J. W. Congdon 1893-7-29 Contra Costa Martinez Comment
  UC1789151  Cinnamomum camphora Barbara Ertter 2001-5-26 17653 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, two young individuals at base of river bank. Comment
  UC2028393  Cirsium cymosum Barbara Ertter with Richard K. Brummitt 1998-5-13 16135 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, west side of ridge in Lougher Loop Trail, S-facing grassy slope Comment
  UC1953204  Cirsium occidentale David Keil with Barbara Ertter et al. 2000-6-18 28815 B Contra Costa Mount Diablo State Park. Lower part of Jumper [Juniper] Trail above Laurel Dell picnic area. Comment
  OBI73068  Cirsium occidentale David J. Keil, with Barbara Ertter et al. 2000-6-18 28815 C Contra Costa Mount Diablo State Park. Lower part of Jumper Trail above Laurel Dell picnic area 914 Comment
  JEPS75543  Cirsium vulgare P. F. Yorks 1974-8-10 363 Contra Costa ca. 1.8 km. s Bear Creek Road (on Hampton Road in Hampton Road Natural Natural Reserve, n of Briones Reservoir); Hampton Road Natural Reserve 180 Comment
  JEPS99955  Cirsium vulgare A. Langston 2003-7-28 AL 75 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD159457  Cirsium vulgare D. S. Park; K. Yeo 2010-8-7 211 Contra Costa Mt. Wanda hiking trail entrance. Under overpass. 85 Comment
  UC1795899  Clarkia Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14638 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; grassy hillside. Comment
  CAS-BOT-BC162564  Clarkia affinis Mary L. Bowerman 1935-5-22 3041 Contra Costa Eagle Point Ridge, canyon at north end which heads into saddle west of Twin Peaks - Mount Diablo 304 Comment
  CAS-BOT-BC162566  Clarkia affinis Alice Eastwood 1923-5-4 11734 Contra Costa Mt. Diablo Comment
  JEPS78818  Clarkia affinis Edward Lee 1936-5-24 2158 Contra Costa about 2 mi se Curry Canyon; Morgan Territory, Marsh Creek Comment
  UC1795728  Clarkia affinis Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14224 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  UC692492  Clarkia affinis Mary L. Bowerman 1933-4-26 1925 Contra Costa ese North Peak (North Peak Ridge, s face); Mount Diablo 609 Comment
  UC692501  Clarkia affinis Mary L. Bowerman 1933-5-18 2123 Contra Costa Blackberry Spring Mount Diablo Comment
  UCSC000477  Clarkia affinis C. M. Belshaw 1936-5-13 2018 Contra Costa Mt. Diablo, Round Valley 229 Comment
  SBBG40396  Clarkia amoena W. J. Dress 1951-7-3 3466 Contra Costa near rd a few mi S of Moraga 152 Comment
  LA106651  Clarkia biloba subsp. biloba W. L. Jepson; 1918-6-3 7585 Contra Costa Donner Canyon, Mount Diablo 685 Comment
  CAS-BOT-BC163607  Clarkia biloba subsp. biloba V. Rattan 1886-1-1 s.n. Contra Costa Unspecified Comment
  POM153229  Clarkia biloba subsp. biloba C. L. Hitchcock 1928-6-5 15 Contra Costa Between Port Costa and Crockett, 1 mile west of Port Costa. 5 Comment
  POM301856  Clarkia biloba subsp. biloba Mary L. Bowerman 1935-6-15 3139 Contra Costa Mount Diablo: Eagle Point Ridge below Ransom Point 823 Comment
  SD69962  Clarkia concinna Darley Howe 1968-5-20 4518 Contra Costa 5.6 miles north of Contra Costa, Alameda County Line on Morgan Territory road. Comment
  UC1952185 Image available Clarkia concinna subsp. concinna R. Raiche 1981-3-1 s.n. Contra Costa North America, U.S.A., California, Contra Costa County: Mt. Diablo. N. Slope of N. peak in talus slopes below the ridge line. Under Quercus spp., Juniperus californica, Cercocarpus betuloides & Pelea baldwinii. Comment
  UC2042956  Clarkia gracilis Barbara Ertter with David Gowen 2007-5-13 19014 Contra Costa Mount Diablo, W of Prospectors Gap Road just E of junction Meridian Ridge Road. Comment
  CDA38704  Clarkia gracilis subsp. gracilis D. G. Kelch 2007-6-3 7 .43 Contra Costa East Bay; Along gated portion of Hampton Rd N of San Pablo Reservoir. Comment
  UC20033  Clarkia modesta F. P. McLean Contra Costa Mt. Diablo Comment
  CAS-BOT-BC172559  Clarkia purpurea subsp. purpurea Mary L. Bowerman 1933-6-14 2270 Contra Costa Curry-Cave Canyon, ridge between two main forks, Mount Diablo Comment
  RSA0059918  Clarkia purpurea subsp. quadrivulnera Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  POM249884  Clarkia rubicunda Joseph A. Ewan 1936-7-5 9744 Contra Costa Virginia Canyon, Berkeley Hills Comment
  RSA113596  Clarkia rubicunda Peter H. Raven 1957-7-5 11050 Contra Costa Northeast side of the hills at Point Richmond 107 Comment
  CHSC27728  Clarkia unguiculata Coleta Lawler 1978-6-23 296 Contra Costa West of Concord on Alhambra Valley Road, 0.7 miles east of Bear Creek Road; roadcut. Comment
  JEPS111556  Clarkia unguiculata A. G. Murdock 2003-6-2 81 Contra Costa Franklin Canyon - McHarry Ranch Rd 126 Comment
  UC1818931  Claytonia exigua subsp. exigua Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14592 Contra Costa Mount Diablo; ; North Peak of Mt. Diablo; open rocky flats. Comment
  UC692552  Claytonia exigua subsp. glauca Mary L. Bowerman 1933-5-4 1998 Contra Costa e end Fossil Ridge; Mount Diablo Comment
  CAS-BOT-BC439332  Claytonia gypsophiloides W. H. Brewer 1862-5-7 1056 Contra Costa Monte [Mount] Diablo Comment
  CAS-BOT-BC439438  Claytonia parviflora subsp. parviflora Alice Eastwood 1915-5-30 4515 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC439440  Claytonia parviflora subsp. parviflora John Thomas Howell 1933-5-14 11252 Contra Costa Hills east of St. Mary's College Comment
  UC1745428  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 870 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC1745429  Claytonia parviflora subsp. parviflora Annetta M. Carter, Leo Bowerman 1935-6-1 869 Contra Costa Mt. Diablo. Main ridge running W from peak. 975 Comment
  UC1795876  Claytonia parviflora subsp. parviflora Barbara Ertter, Brad Olson, Diane Lake 1996-4-14 14590 Contra Costa North Peak of Mt. Diablo; open rocky flats. 1097 Comment
  CAS-BOT-BC440074  Claytonia perfoliata subsp. perfoliata Mary L. Bowerman 1932-3-12 1111 Contra Costa Mount Diablo. Alamo Canyon 350 Comment
  CAS-BOT-BC443683  Claytonia perfoliata subsp. perfoliata Walter Knight 1965-3-1 904 Contra Costa Antioch dunes Comment
  UC1300963  Claytonia perfoliata subsp. perfoliata Helen K. Sharsmith 1962-3-25 4910 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC7890  Claytonia perfoliata subsp. perfoliata W. H. Brewer 1862-5-12 1080 Contra Costa 609 Comment
  UCD100829  Claytonia perfoliata subsp. perfoliata Robert L. Rudd 1947-3-24 23 Contra Costa Picnic Ground, Wildcat Canyon. Comment
  UC105334  Clematis flammula N. Floy Bracelin 1941-8-10 1703 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC545776  Clematis lasiantha Annetta M. Carter 1935-6-1 874 Contra Costa n.w. slope of main peak Mt. Diablo 1005 Comment
  UC692071  Clematis lasiantha Mary L. Bowerman 1930-6-7 272 Contra Costa Meridian Peak summit Mt. Diablo Comment
  OBI19648  Cleome hassleriana Harry Morten 1964-10-11 s.n. Contra Costa Lower end of San Joaquin Valley, 5 mi E of Byron Comment
  UC1050307 Image available Clerodendrum bungei N. Floy Bracelin 1941-8-24 1592 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC41790  Collinsia bartsiifolia var. bartsiifolia Chestnut and Drew 1889-4-16 Contra Costa Concord Comment
  JEPS65197  Collinsia heterophylla L. R. Heckard 1971-4-15 2470 Contra Costa along Morgan Territory Rd (7 mi N of intersection with Manning Rd); Mt. Diablo 487 Comment
  POM194561  Collinsia sparsiflora Y. Mexia 1929-4-21 2376 Contra Costa Moraga Valley. Comment
  RSA300992  Collinsia sparsiflora Mary L. Bowerman 1932-3-6 1101 Contra Costa Sycamore Canyon near mouth; West bank. Comment
  JEPS87900  Collinsia sparsiflora var. collina Barbara Ertter, Brad Olson 1992-4-13 10951 Contra Costa e of Curry Point (Mount Diablo State Park, Knobcone Point Road); Mount Diablo State Park, Knobcone Point Road 518 Comment
  UC1301187  Collinsia sparsiflora var. collina Helen K. Sharsmith 1963-3-3 5192 a Contra Costa near Moraga (Las Trampas Canyon E of St. Mary's College); Las Trampas Canyon 259 Comment
  UC766264  Collinsia sparsiflora var. collina R. F. Hoover 1938-3-5 2817 Contra Costa mouth of Kirker Creek Canyon Comment
  JEPS21079  Collinsia sparsiflora var. collina Joe Zaerr 1958-4-12 71 Contra Costa Along Marsh Creek, Morgan Territory Road (NE slopes of Mt. Diablo) 243 Comment
  UC691583  Collinsia sparsiflora var. collina Mary L. Bowerman 1932-3-6 1101 Contra Costa Sycamore Canyon near mouth Sycamore Canyon, Mount Diablo; Mount Diablo Comment
  JEPS100146  Collinsia sparsiflora var. sparsiflora G. Smick 2003-3-25 GAS 97 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD118040  Collomia diversifolia Ann F. Johnson 1978-5-13 s.n. Contra Costa From Deerflat to Meridian ridge, on Mt. Diablo. Comment
  UC2029194  Conium maculatum Barbara Ertter 2000-7-16 17382 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  UC691850  Convolvulus arvensis Mary L. Bowerman 1931-5-13 840 Contra Costa canyon floor 1 mi above sulphur spring; Mount Diablo, Pine Canyon Comment
  UC2036956  Conyza bonariensis Mary L. Bowerman 1946-2-10 4082 Contra Costa Near C.C.C. Camp, Dan Cook Canyon, Mt. Diablo. Comment
  UC2028015  Conyza canadensis Barbara Ertter 1997-9-14 15820 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  RSA412332  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-31 41431 Contra Costa Mt. Diablo, Rocky City. Comment
  UC691507  Cordylanthus pilosus subsp. pilosus Mary L. Bowerman 1936-8-8 3523 Contra Costa Emmons Canyon, W fork Mount Diablo Comment
  CAS-BOT-BC287940  Coreopsis calliopsidea Dr. Kellogg No date on label 63 Contra Costa Unspecified Comment
  CAS-BOT-BC287146  Coreopsis stillmanii A. Kellogg; W. G. W. Harford 1969-4-8 439 Contra Costa Antioch Comment
  CAS-BOT-BC287169  Coreopsis stillmanii Brandegee No date on label s.n. Contra Costa Mt Diablo Comment
  POM181454  Cornus californica I. L. Wiggins 1930-4-18 4593 Contra Costa East end of Jersey Island. Comment
  CAS-BOT-BC169517  Corylus cornuta subsp. californica Barrett Anderson 1987-4-29 3477 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  UC1622290  Cotoneaster pannosus Barbara Ertter 1997-1-5 15431 Contra Costa at Lime Ridge between Walnut Creek and Clayton (Ygnacio Valley Road); Lime Ridge, Ygnacio Valley Road Comment
  RSA721748  Cotula australis Barbara Ertter, Mary Bowerman, et al. 1995-5-7 14055 Contra Costa Three-Springs on NE side of Mt. Diablo SE of Clayton, road behind houses traversing north-facing slope Comment
  UC31273  Cotula coronopifolia W. H. Brewer 1862-4-25 993 Contra Costa Camp 68 Martinez Comment
  UCD159362  Cotula coronopifolia D. S. Park; S. Joslin 2010-6-27 147 Contra Costa Santa Cruz. Lighthouse Field State Beach. Below W Cliff dr. Growing on rocky outcrops. Scattered individuals. 0 Comment
  CAS-BOT-BC291337  Cotula coronopifolia Walter Knight; et al 1979-4-13 3359 Contra Costa Point Emmet, Browns Island Comment
  UCR182905  Crassocephalum crepidioides G. Fred Hrusa 2006-1-18 16841 A Contra Costa San Pablo, at Stanton and San Pablo Ave Comment
  SBBG122841  Crassula aquatica M. Bowerman 1975-9-14 Contra Costa Hidden Pond, Mt Diablo Comment
  UC692662  Crassula aquatica Mary L. Bowerman 1931-4-4 663 Contra Costa pool w. of Turtle Rock; Mt. Diablo Comment
  RSA0068476  Crassula connata Katie Gallagher, Nick Jensen 2014-4-26 202 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC2027987  Crassula tillaea Barbara Ertter 1998-5-3 16033 Contra Costa Pine Ridge summit of Wall Point Road at southwest base of Mount Diablo. Comment
  CDA4469  Crepis bursifolia G. D. Barbe 1978-7-2 2405 Contra Costa 2800 block of East Street between Sycamore and Maple Avenue, Concord. 0 Comment
  CDA15282  Cressa truxillensis G. F. Hrusa, D. Crowe, R. York 1998-7-17 14720 Contra Costa Sacramento Delta; E end of Dow Chemical property, Pittsburg. Comment
  UCD150913  Cressa truxillensis James A. Neilson Jr. 1972-11-2 3616 Contra Costa Walnut Creek drainage. Elevation estimated in Google Earth by label maker. 1 Comment
  UC2028424  Crocosmia X crocosmiiflora Barbara Ertter 1996-9-19 15291 Contra Costa Cerrito Creek at base of Albany Hill, just west of San Pablo Avenue Comment
  CDA21584  Croton californicus D. G. Kelch 2000-9-4 0 .146 Contra Costa CA Delta; N Oakley. Comment
  JEPS79011  Croton californicus Edward Lee with Annetta Carter 1935-10-17 1626 Contra Costa Antioch; dunes Comment
  POM138276  Croton californicus C. F. Baker 1903-4-25 2825 Contra Costa Antioch. Comment
  RSA201184  Croton californicus Peter Rubtzoff 1951-10-7 827 Contra Costa Along lower San Joaquin River, east of Antioch. Comment
  UCD141936  Croton californicus R. F. Hoover 1935-3-10 s.n. Contra Costa Antioch. Comment
  UCD77574  Croton californicus Robert E. Preston 1999-10-19 1249 Contra Costa Along W side of Bethel Island Rd, about 0.3-0.9 mi N of Cypress Rd, 5.4 mi E of Oakley. 6 Comment
  OBI22928  Croton setiger Janet Harford 1971-11-6 2 Contra Costa Mount Diablo, S side 610 Comment
  JEPS99569  Crypsis schoenoides Mary Bowerman 1993-10-22 Contra Costa Mount Diablo, Pine Pond. Comment
  UC1618174  Crypsis schoenoides Barbara Ertter 1989-9-30 8866 Contra Costa 1 1/4 mi nw of Inspiration Point (Tilden Regional Park e of El Cerrito, East Bay Skyline National Recreation Trail (=Nimitz Way)); Tilden Regional Park, E Bay Skyline Nat'l Recreation Trail Comment
  UC2027935  Crypsis schoenoides Barbara Ertter with Chris Thayer 1996-10-25 15376 Contra Costa West side of Mount Diablo, North Gate Road 3 road miles below Junction near Mineral Spring. Comment
  UC407075  Cryptantha flaccida L. R. Abrams 1921-5-25 8017 Contra Costa Mt. Diablo Comment
  UC691402  Cryptantha flaccida Mary L. Bowerman 1933-5-2 1955 Contra Costa below Pioneer Camp; Mount Diablo 762 Comment
  UC691340  Cryptantha microstachys Mary L. Bowerman 1933-5-25 2183 Contra Costa w end Oyster Ridge (steep n-facing slope, s-face); Mount Diablo 411 Comment
  POM64396  Cryptantha microstachys C. F. Baker 1903-4-28 2810 Contra Costa Mitchell s Canyon, Mt. Diablo. Comment
  JEPS108227  Cryptantha nevadensis David Gowen 2005-5-6 283 Contra Costa Mt. Diablo State Park. Rocky outcrops on the south side of North Peak. Comment
  UC691392  Cryptantha nevadensis var. rigida Mary L. Bowerman 1931-5-7 808 a Contra Costa North Peak Mount Diablo Comment
  SEINET3863389 Image available Cupressus macrocarpa Michael R. Tansey 1963-2-15 4 Contra Costa Moist Berkeley Clay, est exposure on hillside, east of golf courrse 30 yds. in Tilden Regional Park, Cal.; 0 183 Comment
  CDA33352  Cuscuta japonica Niang/Slattengreen 2008-8-2 PDR# 1454024 Contra Costa El Sobrante; 5737 Skyview Place (near Richmond city limits?) 0 Comment
  CDA33483  Cuscuta japonica Fonseca/Yost 2008-11-2 PDR# 1503841 Contra Costa San Pablo; 2336 Shawn Dr. 0 Comment
  CDA7755  Cuscuta japonica Niang 2008-2-13 PDR# 1454473 Contra Costa Carquinez Strait; Rodeo, 2 California St. 0 Comment
  OBI14800  Cuscuta salina G. Thomas Robbins 1959-9-13 4161 Contra Costa On shores of San Pablo Bay, at the N edge of Pinole Comment
  UC1795818  Cuscuta subinclusa Barbara Ertter 1994-6-26 12876 Contra Costa South of Point Molate Beach Park in west Richmond north of San Rafael Bridge, beach north of Pt. Castro. Comment
  CDA6262  Cymbalaria muralis D. G. Kelch, A. G. Murdock 2005-5-23 5 .376 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  CDA4534  Cynara cardunculus T. C. Fuller 1957-10-2 399 -57 Contra Costa Antioch. 0 Comment
  JEPS99524  Cynodon dactylon Mary Bowerman 1975-9-14 Contra Costa Mount Diablo, Hidden Pond. Comment
  UCSB21184  Cynoglossum grande Jones, D. 1967-3-25 Contra Costa Mt. Diablo State Park 475 Comment
  RSA721595  Cynosurus echinatus Mary L. Bowerman 1975-6-7 s.n. Contra Costa Mount Diablo. Big Spring. Comment
  SD175778  Cyperus difformis D. G. Kelch 2006-9-15 06 474 Contra Costa Shell Ave., Martinez, between Pine St. and Harborview Dr. 56 Comment
  CAS-BOT-BC114612  Cyperus eragrostis John Thomas Howell; Gordon H. True 1972-6-29 48936 Contra Costa Along ditches on Byron Hot Springs Road SE of Byron. Comment
  CAS-BOT-BC114613  Cyperus eragrostis James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  JEPS111890  Cyperus eragrostis D. G. Kelch 2004-5-7 04 .192 Contra Costa Ca ada del Cierbo Ca ada del Cierbo 40 Comment
  SEINET3909439  Cyperus eragrostis T. Morley 1940-12-3 90 Contra Costa Banks at upper end of San Leandro Lake near mouth of Redwood Creek.; 0 130 Comment
  UC665689  Cyperus eragrostis Thomas Morley 1940-12-3 90 Contra Costa banks at upper end San Leandro Lake (near mouth of Redwood Creek) 129 Comment
  SD107681  Cyperus erythrorhizos Walter Knight, Irja Knight 1980-8-26 3769 Contra Costa Hercules; adventive along edge of pond for sewage disposal plant in a structure covered with vinyl. Comment
  SD45084  Cytisus canariensis W. W. Jones 1927-4-5 Contra Costa Crockett Comment
Read comments
Jul 11 2010
  SEINET2444146  Datisca glomerata C. Davidson, Barbara Ertter 2010-9-1 11791 Contra Costa Mt. Diablo, Donner Canyon. N side of Mt. Diablo State Park. (Regency Dr. access.). 191 Comment
  CDA965  Daucus pusillus D. G. Kelch 2005-6-14 5 .333 Contra Costa East Bay; San Pablo. North Alvarado Park, south of San Pablo Dam Rd. Comment
  JEPS100136  Daucus pusillus G. Smick 2003-5-13 GAS 188 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC692370  Daucus pusillus Mary L. Bowerman 1932-4-27 1404 Contra Costa canyon w. of Riggs Canyon (fork of canyon toward n. end, Oyster Ridge); Mt. Diablo, Oyster Ridge 350 Comment
  JEPS20071  Deinandra corymbosa Peter H. Raven 1957-7-5 11052 Contra Costa tip of Point Isabel Point Isabel Comment
  CAS-BOT-BC294024  Deinandra kelloggii James I. McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  SEINET3147522  Deinandra kelloggii K. Brandegee 1907-5-5 19 Contra Costa Near Antioch Comment
  UC88925  Deinandra kelloggii K. Brandegee 1889-5-1 Contra Costa Antioch Comment
  UC990571  Deinandra kelloggii James I. McMurphy 1908-10-18 Contra Costa Antioch Comment
  CAS-BOT-BC294026  Deinandra kelloggii H. M. Hall 1930-6-18 12793 Contra Costa Stockton Ranch, south of Antioch Comment
  UCD131076  Deinandra kelloggii Ann F. Johnson 1978-7-1 AN- 43 Contra Costa tall tarweed in dry grassy area near west PG and E tower, Antioch Dunes. Comment
  UC691947  Delphinium californicum Mary L. Bowerman 1935-5-30 3091 Contra Costa rock slide Mount Diablo, Eagle Point Ridge 350 Comment
  JEPS6242  Delphinium californicum subsp. interius W. L. Jepson 1921-11-19 9523 Contra Costa s slope Mount Diablo (chamise ridge) Comment
  JEPS105715  Delphinium hansenii subsp. hansenii David Gowen 2004-5-10 57 Contra Costa Round Valley Regional Preserve.North-facing slope above the main road through the park, ca. 1/2 mile west of the entry. Comment
  CAS-BOT-BC10308  Delphinium hesperium Alice Eastwood 1915-5-30 4439 Contra Costa Mt. Diablo Comment
  SEINET12086747  Delphinium hesperium J. T. Howell 1931-1 6482 Contra Costa North Side of Mt. Diablo Comment
  JEPS107086  Delphinium hesperium subsp. hesperium Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14242 Contra Costa South side Mount Diablo, near head of Curry Creek along road to Sheepherders Springs from Sloan Road. Comment
  JEPS6231  Delphinium hesperium subsp. hesperium Willis L. Jepson May 23-24 1891 21394 Contra Costa Mt. Diablo Comment
  UC2028329  Delphinium hesperium subsp. hesperium Barbara Ertter with Richard K. Brummitt 1998-5-13 16137 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  UC2028975  Delphinium hesperium subsp. hesperium Barbara Ertter with Kevin Hintsa 2000-5-16 17024 Contra Costa Rock City area on SSW side of Mount Diablo, East Fossil Ridge Trail. Comment
  UC1819001  Delphinium nudicaule Barbara Ertter, Tom Delendick 1996-5-2 14613 Contra Costa Mount Diablo State Park, Deer Flat Road north of Juniper Camp, at cut through open live oak forest, northwest-facing slope. 853 Comment
  RSA398660  Delphinium nudicaule John Doyen, Glenn A. Gorelick 1966-4-22 s.n. Contra Costa Russelman Park, Mt. Diablo State Park. 305 Comment
  UC136343  Delphinium parryi subsp. parryi M. K. Curran May 1886 Contra Costa near Antioch Comment
  CAS-BOT-BC116457  Delphinium patens subsp. patens Alice Eastwood 1915-5-30 4497 Contra Costa Mt. Diablo Comment
  JEPS65196  Delphinium patens subsp. patens L. R. Heckard 1971-4-15 2471 Contra Costa along Morgan Territory road 7 mi n intersection with Manning road (e of Mt. Diablo) 487 Comment
  JEPS65179  Delphinium recurvatum L. R. Heckard 1971-4-15 2488 Contra Costa railroad embankment at intersection of Holey Rd; s of Byron Comment
  LA207638  Delphinium variegatum H. Lewis; Carl Epling 1944-5-6 sn Contra Costa 1 mi. S of Marsh Creek Rd. on the Beck Rd. to Livermore Comment
  UC188656  Delphinium variegatum subsp. variegatum Edw. L. Greene 1899-3-23 Contra Costa Byron Comment
  JEPS51668  Dendromecon rigida H. H. Haworth 1917-3-3 Contra Costa Maraga Ridge Comment
  JEPS51676  Dendromecon rigida Chesnut and Drew April, 1890 Contra Costa Sommersville Comment
  CAS-BOT-BC192678  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi S. of Byron Comment
  UC650562  Deschampsia danthonioides Ira L. Wiggins 1930-4-17 4576 Contra Costa 1/4 mi. s. Byron Comment
  UCD62786  Deschampsia danthonioides Beecher Crampton 1968-3-27 8235 Contra Costa SE corner, ca. 3.5 miles south of Byron. Comment
  JEPS97559  Deschampsia elongata R. D. Stone 1980-7-13 279 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  UCD18454  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge, along trails. Comment
  SEINET3927628  Deschampsia elongata Glen Holstein 2000-7-27 s.n. Contra Costa SE El Sobrante, NE side of San Pablo Ridge.; 0 Comment
  UC692102  Dicentra chrysantha Mary L. Bowerman 1932-9-3 1529 Contra Costa Muir Area; Mount Diablo Comment
  POM272496  Dicentra chrysantha L. R. Abrams 1921-5-25 8007 Contra Costa Halfway up road, Mt. Diablo Comment
  SEINET3559560 Image available Dichelostemma capitatum Lewis S. Rose 1932-3-15 3284 Contra Costa Byron. Comment
  CAS-BOT-BC500089  Dichelostemma capitatum R. F. Hoover 1938-2-21 2756 Contra Costa Point Richmond Comment
  JEPS100059  Dichelostemma congestum G. Smick 2003-5-8 GAS 69 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1300935  Dichelostemma congestum Helen K. Sharsmith 1962-5-20 5071 Contra Costa ne slope Mount Diablo (Headwaters of Marsh Creek); San Francisco Bay Region, , Marsh Creek 304 Comment
  UC2029186  Dichelostemma congestum Barbara Ertter 2000-5-14 17006 Contra Costa Donner Canyon on north side of Mount Diablo, SW end of Falls Trail between Middle Trail and Donner Creek crossing Comment
  RSA721369  Dichondra donelliana Barbara Ertter, Gary Schoolcraft 1996-4-7 14574 Contra Costa Pont San Pablo in west Richmond. Comment
  SJSU1493  Diplacus aurantiacus D. J. Thompson 1954-5-2 Contra Costa between Pinole & Pittsburg Comment
  CAS-BOT-BC151950  Diplacus douglasii John Thomas Howell 1941-4-6 16177 Contra Costa Near Deer Flat, Mt. Diablo Comment
  SJSU7703  Diplacus tricolor J. A. Johnson 1956-4-12 20 Contra Costa 1.5 mi E of Concord in El Monte District Comment
  RSA697529  Dipsacus fullonum J. Vlahos 1934-8-1 s.n. Contra Costa Contra Costa County Hills. Comment
  CAS-BOT-BC121841  Dirca occidentalis Howard E. McMinn 1925-1-1 s.n. Contra Costa Head of San Leandro Creek Comment
  RSA40099  Dirca occidentalis L. S. Rose 1948-3-9 s.n. Contra Costa Head of Wildcat Creek, Berkeley Hills 457 Comment
  UC723819  Dirca occidentalis Joseph Andorfer Ewan 1934-3-10 8643 Contra Costa creek bottom flat 2 mi below Orinda road bridge; Wildcat Canyon Comment
  SEINET12190184  Dirca occidentalis J. T. Gregory 1936-1 1043 Contra Costa W branch San Pablo Creek on Tunnel Road 3 mi E of Berkeley Comment
  UCSB26563  Dirca occidentalis Havlik, Neil 1969-3-25 Contra Costa Junction of Grizzly Peak Blvd. and South Park Drive, at the southern end of Tilden Regional Park 487 Comment
  UC1300913  Disporum hookeri Helen K. Sharsmith 1963-3-3 5184 Contra Costa e of St. Mary's College near Moraga (Las Trampas Canyon); San Francisco Bay Region, Las Trampas Canyon 259 Comment
  CAS-BOT-BC208653  Distichlis spicata A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay Comment
  CAS-BOT-BC208655  Distichlis spicata Walter Knight; Joanne Dean 1978-8-14 3192 Contra Costa Browns Island Comment
  UCD64394  Distichlis spicata var. stolonifera M. Wiesendanger 1926-6-1 1534 Contra Costa Richmond. Comment
  JEPS128149  Dittrichia graveolens Eric Wrubel, Robert Steers 2010-10-1 NPS 1 Contra Costa Joh Muir National Historic Site, Martinez. Mount Wand trailhead. Comment
  CHSC21631  Dodecatheon clevelandii subsp. patulum Willis Ball 1975-3-9 494 Contra Costa Contra Loma Regional Park. In area #8. On n facing slope near top of hill ca. 500 yds s of main parking lot ca. 750 yds w of Contra Loma Blvd. 149 Comment
  UC1039536  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1929-3-15 5044 Contra Costa Nortonville Comment
  UC1039585  Dodecatheon clevelandii subsp. patulum Herbert L. Mason 1925-2-28 1260 Contra Costa 1/2 mi e Rodeo; e of Rodeo Comment
  UC1123279  Dodecatheon clevelandii subsp. patulum R. C. Wilson 1935-2-26 110 Contra Costa 3/4 mi sw Somersville; Mt. Diablo Quad., sw of Somersville Comment
  UC2062624  Dodecatheon clevelandii subsp. patulum Barbara Ertter with Steve Matson 2003-3-15 18109 Contra Costa Black Diamond Mines Regional Preserve, Black Diamond Trail in SW corner of park. Comment
  JEPS99973  Dodecatheon hendersonii S. O'Neil 2003-3-11 SEO 7 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  SBBG5600  Dodecatheon hendersonii J. M. Tucker 1946-3-24 1387 Contra Costa hills between Nortonville and Somersville Comment
  RSA461371  Dodecatheon hendersonii J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  POM203314  Dodecatheon hendersonii subsp. cruciatum J. T. Howell 1931-3-10 5756 Contra Costa East side of Mt. Diablo 7 miles from Clayton on Livermore road. Comment
  JEPS127676  Downingia insignis Barbara Ertter with David Gowen and Michael Park 2017-5-2 22797 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  JEPS65183  Downingia insignis L. R. Heckard 1971-4-15 2484 Contra Costa s of Byron (at intersection of Holey Road) Comment
  UC1189259  Downingia insignis John R. Swanson 1958-4-15 236 Contra Costa 3 mi s Byron (at junction of Holey road) Comment
  UC1315008  Downingia insignis R. F. Hoover 1967-4-28 10503 Contra Costa Byron Hot Springs Comment
  UC1751038  Downingia insignis Annetta M. Carter 1951-5-13 3054 Contra Costa 3.3 mi. S of Byron. Comment
  UC903204  Downingia insignis Ethel Crum 1938-5-1 1979 Contra Costa 3 mi se Byron (w side of San Joaquin Valley); San Joaquin Valley 7 Comment
  RSA622149  Downingia insignis John A. Churchill 1974-4-15 7441521 Contra Costa Between Route K4 and railroad at Holey Road. Comment
  UC909625  Downingia insignis Kay H. Beach 1941-4-30 1082 Contra Costa Comment
  JEPS14440  Downingia pulchella W. L. Jepson May 23 1891-May 24 1891 21212 Contra Costa Mt. Diablo Comment
  JEPS22441  Downingia pulchella Margaret Mallory 1958-5-3 51 Contra Costa West Sherman Acres 15 Comment
  CAS-BOT-BC41652  Draba cuneifolia var. cuneifolia Walter Knight; Irja Knight 1968-3-18 2278 Contra Costa Charles Lee Tilden Regional Park. In the Botanic garden. Comment
  UC2027994  Draba verna Barbara Ertter with Tony Morosco 1998-4-12 16024 Contra Costa Mount Olympia on north side of Mount Diablo, midway down Olympia Road from summit. Comment
  CAS-BOT-BC70864  Dryopteris arguta Mary L. Bowerman 1930-6-18 342 Contra Costa Dan Cook Canyon Comment
  CDA42721  Dryopteris arguta D. G. Kelch 2004-9-2 4 .34 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Dive. East of Ozol. Comment
  JEPS111939  Dryopteris arguta A. G. Murdock 2004-2-12 205 Contra Costa Franklin Canyon - McHarry Ranch Rd. 126 Comment
  UC692560  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1931-6-17 925 Contra Costa e side Riggs Canyon Comment
  UC692655  Dudleya cymosa subsp. paniculata Mary L. Bowerman 1930-6-7 288 Contra Costa Meridian Peak Summit Comment
  UCD158709  Dysphania James A. Neilson Jr. 1972-10-22 3623 a Contra Costa Contra Costa County. Lower Pine Creek. (Elevation estimated using Google Earth by label maker.) 15 Comment
  UC2028468  Echinochloa colona Barbara Ertter 1997-8-24 15776 Contra Costa Mount Diablo, Summit Road just above Junction Station Comment
  JEPS107109  Echinochloa crus-galli Barbara Ertter, Kristin Ertter 1995-7-11 14486 Contra Costa West side of Mt Diablo; mudflat around inlet to Pine Pond. Comment
  UC2029147  Echinochloa crus-galli Barbara Ertter with Dan Norris 1999-11-14 16850 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  CDA1988  Echinochloa muricata var. microstachya T. C. Fuller 1964-11-6 12809 Contra Costa Bethel Island. 0 Comment
  UC2027964  Ehrendorferia chrysantha Barbara Ertter 1997-8-24 15771 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  UCR11895  Elaeagnus angustifolia E. C. Van Dyke 1941-10-4 s.n. Contra Costa [San Joaquin] river bank east of Antioch 15 Comment
  CAS-BOT-BC211459  Elaeagnus angustifolia Dr. E. C. Van Dyke 1941-10-4 s.n. Contra Costa River bank east of Antioch Comment
  UC692626  Elatine californica Mary L. Bowerman 1935-7-22 3186 Contra Costa s side Meridian Peak (Hidden Pond); Mount Diablo Comment
  UC1949081  Eleocharis acicularis Barbara Ertter with Jim Dunne, David Gowen, Lech Naumovich 2009-12-3 19802 Contra Costa at upper (south) end of San Pablo Dam Reservoir northwest of Orinda; lower areas where recently inundated Comment
  RSA721534  Eleocharis acicularis var. acicularis Mary L. Bowerman 1975-9-14 s.n. Contra Costa Mount Diablo. Comment
  JEPS111879  Eleocharis macrostachya A. G. Murdock 2004-4-30 250 Contra Costa McEwen Road West side of road in boggy wetland. 130 Comment
  CAS-BOT-BC112795  Eleocharis macrostachya Walter Knight; Irja Knight 1978-10-9 3320 Contra Costa Contra Loma Regional Park, Antioch, at reservoir's edge Comment
  UC692423  Elymus X saundersii Mary L. Bowerman 1935-6-1 3109 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide; Mount Diablo 1066 Comment
  POM205600  Elymus glaucus Jos Burtt Davy 1897-04 1762 Contra Costa Point Isabel. Comment
  UC1789176  Elymus glaucus Barbara Ertter 2002-6-16 17953 Contra Costa Richmond Field Station, southwest end of overgrown meadow near boundary with park, edge of thick growth facing fence. Comment
  UC691202  Elymus glaucus Mary L. Bowerman 1933-5-21 2154 Contra Costa n-facing slope below Grape Spring (s from Curry Canyon); Mount Diablo Comment
  UC756645  Elymus multisetus G. L. Stebbins Jr. 1946-6-9 3655 Contra Costa 2 mi e El Cerrito (near Mira Vista Country Club) Comment
  UCD62489  Elymus multisetus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  JEPS99518  Elymus trachycaulus Mary Bowerman 1977-7-25 Contra Costa Mount Diablo, North Peak. Comment
  CAS-BOT-BC204317  Elymus trachycaulus subsp. trachycaulus Mary L. Bowerman 1935-5-18 3030 Contra Costa Mount Diablo. Meridian Peak north of the summit parking area 1066 Comment
  CDA22547  Epilobium canum D. G. Kelch, Mike Park 2008-9-1 8 .296 Contra Costa Carquinez Strait; North of Waterbird Park along RR tracks. E of Martinez. Comment
  CAS-BOT-BC166166  Epilobium canum subsp. canum John Thomas Howell 1925-11-1 1536 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC1122299  Epilobium canum subsp. canum R. W. Lundh 1932-9-22 167 Contra Costa 1 mi sw Mt. Diablo; Mt. Diablo Quadrangle 914 Comment
  UC1745970  Epilobium canum subsp. canum Annetta M. Carter 1933-11-25 419 Contra Costa Mount Diablo Comment
  UC2027841  Epilobium ciliatum Barbara Ertter 2000-9-30 17535 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  UC692457  Epilobium ciliatum subsp. ciliatum Mary L. Bowerman 1930-10-4 476 Contra Costa Maple Spring Mount Diablo Comment
  UC2027881  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-9-30 17534 Contra Costa West side Mount Diablo, pond on China Wall Road ca 1/2 mile NW of Macedo Ranch. Comment
  UC2028972  Epilobium ciliatum subsp. ciliatum Barbara Ertter 2000-7-16 17392 Contra Costa lower Pine Creek in Diablo Foothills Regional Park. Comment
  CDA9494  Epilobium cleistogamum D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .218 Contra Costa Byron Airport. Comment
  UC85551  Epilobium cleistogamum Katharine Brandegee 1907-6-16 Contra Costa clay depressions between Antioch and Marsh Creek (type locality) Comment
  UC615553  Epilobium densiflorum Beryl O. Schreiber 1933-10-5 936 Contra Costa road to Mount Diablo; marshy ground Comment
  UC692440  Epilobium minutum Mary L. Bowerman 1935-5-18 3022 Contra Costa nw-facing slope across road and a little e of parking area; Mount Diablo 1066 Comment
  JEPS99501  Epilobium minutum Mary L. Bowerman 1978-5-14 Contra Costa Mount Diablo. The old wagon rd. mines trail on E side of Eagle Peak. Comment
  CAS-BOT-BC57135  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa Arroyo del Cerro, east fork: Ten feet below spring 289 Comment
  UC692076  Equisetum hyemale subsp. affine Mary L. Bowerman 1935-3-16 2744 Contra Costa e fork Arroyo del Cerro (10 ft below spring); Mt.Diablo 289 Comment
  CAS-BOT-BC57259  Equisetum laevigatum Mary L. Bowerman 1931-5-16 864 Contra Costa Lower Silver Spring Comment
  UC2028469  Eragrostis mexicana subsp. virescens Barbara Ertter 1997-8-24 15777 Contra Costa Mount Diablo, Summit Road just above Junction Station Comment
  CDA4553  Erechtites glomeratus D. G. Kelch 2005-5-5 5 .218 Contra Costa Carquinez Strait Region; Point Pinole - Giant Marsh. Giant Salt Marsh. Comment
  JEPS103961  Eriastrum ertterae David Gowen 2003-6-14 Contra Costa Lime Ridge Open Space, near transmission tower 280 Comment
  UC2028020  Ericameria arborescens Barbara Ertter 1997-9-14 15816 Contra Costa Southwest side of Mount Diablo, Wall Point Road on open sandstone ridge northwest of Wall Point. Comment
  CAS-BOT-BC287527  Ericameria linearifolia Paul F. Covel 1936-5-17 155 Contra Costa Mt Diablo, on trail summit, N peak Comment
  UC1118739  Ericameria linearifolia C. M. Belshaw 1936-5-8 2066 Contra Costa se slope of Mt. Diablo Mt. Diablo Quadrangle, Mt. Diablo (Plot 5) Comment
  UC36557  Ericameria linearifolia F. T. Bioletti 1894-5-13 Contra Costa Mt. Diablo Comment
  UCD131420  Ericameria linearifolia David Scofield Wilson 1983-6-1 s.n. Contra Costa Mount Diablo. Comment
  JEPS99952  Erigeron foliosus var. franciscensis A. Langston 2003-6-30 AL 56 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC295717  Erigeron petrophilus var. petrophilus Joseph Andorfer Ewan 1936-7-5 9735 Contra Costa Wildcat Creek Comment
  UC691862  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1933-5-18 2118 Contra Costa Blackberry Spring Mount Diablo, Blackberry Spring Comment
  UC697208  Erigeron philadelphicus var. philadelphicus Mary L. Bowerman 1935-5-16 2998 Contra Costa Russelman Park road at Gregory Ranch junction; Mount Diablo 289 Comment
  UC1613946  Eriodictyon californicum Charles M. Belshaw 1935-6-24 1027 Contra Costa Sobrante Hills Comment
  UC24044  Eriodictyon californicum W. H. Brewer 1862-5-22 1133 Contra Costa ne Monte Diablo; ne of Monte Diablo Comment
  UC35509  Eriodictyon californicum F. P. McLean March, 1875 Contra Costa Mt. Diablo Comment
  RSA401487B  Eriodictyon californicum H. de Forest 1930-4-6 s.n. Contra Costa SE of Mortoville, Small coal mine ravine. Comment
  RSA136732  Eriogonum J. T. Howell 1955-8-24 30903 Contra Costa Near summit of south peak, Mt. Diablo Comment
  CDA22474  Eriogonum angulosum J. Simmen 1958-11-6 1515 -58 Contra Costa Palm Tract, Brentwood. 0 Comment
  JEPS56891  Eriogonum gracile W. L. Jepson 1898-10-18 Contra Costa Deer Flat Mt. Diablo Comment
  UCR263530  Eriogonum gracile Barbara Ertter, Tony Morosco 1996-7-27 15040 Contra Costa north side of Mount Diablo south of Clayton, where Cardinet Oaks Road crosses Donner Creek 335 Comment
  UC2027963  Eriogonum gracile Barbara Ertter 1997-8-24 15772 Contra Costa Mount Diablo, near first corner on Summit Road below Toyon Campground. Comment
  UC2029081  Eriogonum gracile Barbara Ertter with Joanne Kerbavaz and Mary Bowerman 2000-8-20 17510 Contra Costa north side Mount Olympia in Mount Diablo State Park, bulldozed site of former occupation at Zippe Spring. Comment
  UC692018  Eriogonum gracile var. gracile Mary L. Bowerman 1932-11-11 1639 Contra Costa Little below Moses Rock Spring (ridge leading up from Buckle Point (on west road)); Mount Diablo Comment
  UC692050  Eriogonum gracile var. gracile Mary L. Bowerman 1930-9-9 458 Contra Costa North Peak, Mount Diablo Mount Diablo; above Gabriel-Hinks'? Comment
  RSA97513  Eriogonum gracile var. gracile Beecher Crampton 1949-7-15 480 Contra Costa Foothills, above the site of the extinct town of Judsonville, south of Antioch Comment
  UC692151  Eriogonum inerme Mary L. Bowerman 1931-6-4 920 Contra Costa summit of Meridian Peak Mt. Diablo, Meridian Peak Comment
Read comments
May 14 2019
  JEPS116889  Eriogonum inerme David Gowen 2007-6-10 761 Contra Costa Mt. Diablo State Park. Gravel opening in chaparral near antenna area north of summit parking lot. Comment
  CAS-BOT-BC268908  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-9-12 1037 Contra Costa Mount Diablo. Mitchell Canyon: Spur jutting out into west fork 838 Comment
  UC692047  Eriogonum nudum var. auriculatum Mary L. Bowerman 1931-10-23 1062 Contra Costa Riggs Canyon Mount Diablo Comment
  UC692159  Eriogonum nudum var. auriculatum Annetta Carter 1940-6-22 1600 Contra Costa Lime Ridge, n edge of s chaparral patch Mount Diablo 243 Comment
  UC692198  Eriogonum nudum var. auriculatum Mary L. Bowerman 1932-10-1 1597 Contra Costa s Uncle Sam Canyon (Eagle Point Ridge); Mount Diablo Comment
  CAS-BOT-BC269816  Eriogonum nudum var. psychicola Peter Rubtzoff 1951-10-7 826 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  CAS-BOT-BC269820  Eriogonum nudum var. psychicola Jerry A. Powell 1962-8-19 3082 Contra Costa Ca. 2 miles east of Antioch Comment
  JEPS102909  Eriogonum roseum Barbara Ertter with Tony Morosco 1998-10-18 16436 Contra Costa NE corner of Lime Ridge recreation Area Mount Diablo 182 Comment
  JEPS105713  Eriogonum roseum David Gowen 2004-8-26 156 Contra Costa Black Diamond Mines Regional Preserve; 3/8 mi from parking area on Frederickson Lane, on Old Homestead Loop, just SW of its junction with the Homestead Trail Comment
  RSA39904  Eriogonum roseum P. A. Munz 1947-10-8 12207 Contra Costa Antioch 8 Comment
  CAS-BOT-BC267448  Eriogonum truncatum C. F. B. 1903-4-28 2833 Contra Costa Marsh Creek, Mt. Diablo Comment
  CAS-BOT-BC267870  Eriogonum umbellatum var. bahiiforme H. E. McMinn No date on label. 94 Contra Costa Near summit of Mt. Diablo Comment
  UC691725  Eriophyllum confertiflorum var. confertiflorum Mary L. Bowerman 1933-5-3 1968 Contra Costa due s of summit Mount Diablo 822 Comment
  CAS-BOT-BC300924  Eriophyllum jepsonii Mary L. Bowerman 1935-5-30 3087 Contra Costa Mount Diablo. Eagle Point ridge 304 Comment
  CAS-BOT-BC300926  Eriophyllum jepsonii John Thomas Howell 1950-7-5 26636 Contra Costa Above Nortonville Comment
  CDA10029  Eriophyllum jepsonii D. G. Kelch 2007-4-28 7 .203 Contra Costa Mitchell Canyon. Mt Diablo. Comment
  JEPS28851  Eriophyllum jepsonii unknown 1896-5-29 Contra Costa Mt. Diablo Comment
  UC196644  Eriophyllum jepsonii J. W. Congdon 1896-5-29 Contra Costa Mt. Diablo Comment
  JEPS34598  Eriophyllum lanatum var. achilleoides W. L. Jepson 1918-6-3 7577 Contra Costa Mt. Diablo Comment
  UC691668  Eriophyllum lanatum var. achilleoides Mary L. Bowerman 1935-5-30 3097 b Contra Costa Eagle Point ridge = between the two n ridges which converge at Twin Peaks; Mt. Diablo, Eagle Point ridge 350 Comment
  LA203600  Eriophyllum lanatum var. achilleoides Lincoln Constance; 1933-6-25 E 94 Contra Costa Mount Diablo, near the southeastern base Comment
  UCSB6523  Eriophyllum lanatum var. arachnoideum Keator, Glenn 1959-7-1 Contra Costa 1/4 mile above Laurel camp on Mt. Diablo Comment
  UC692708  Erodium botrys Mary L. Bowerman 1931-3-14 571 Contra Costa Windy Point Mount Diablo Comment
  JEPS75517  Erodium cicutarium P. F. Yorks 1974-2-24 113 Contra Costa ca 1.9 km s Bear Creek Road on Hampton Road (n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC692704  Erodium cicutarium Mary L. Bowerman 1930-6-28 387 Contra Costa Mount Diablo, near road above junction Mount Diablo Comment
  RSA181410  Erodium cicutarium James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  JEPS105747  Erodium macrophyllum Barbara Ertter with David Gowen, Mike Park, Wilde Legard 2004-4-13 18346 Contra Costa Black Diamond Mines Regional Preserve, WSW-facing slope above water tank E of River View Loop Trail, over saddle E of park headquarters at Sidney Flat 182 Comment
  CHSC21643  Erodium moschatum Willis Ball 1975-3-2 463 Contra Costa Contra Loma Regional Park. In area #1. In island in middle of main parking lot on s side of lake. 38 Comment
  CAS-BOT-BC211072  Eryngium Katharine Brandegee 1907-5-16 s.n. Contra Costa Antioch Comment
  UC691871  Eryngium castrense Mary L. Bowerman 1935-6-28 3174 Contra Costa s. Meridian Peak summit (300 yds. e. of meridian fence line); Mt. Diablo 487 Comment
  UC2028328  Eryngium jepsonii Barbara Ertter with Richard K. Brummitt 1998-5-13 16136 Contra Costa Black Diamond Mines Regional Preserve in hills south of Pittsburg, head of SE branch of Loughler Loop Trail. Comment
  UC1122965  Eryngium vaseyi B. Schreiber 1937-6-12 2400 Contra Costa Byron Byron Quad., Byron 15 Comment
  UC765562  Eryngium vaseyi R. F. Hoover 1937-5-14 2124 Contra Costa Byron Hot Springs Comment
  SEINET9111554  Eryngium vaseyi var. castrense Lincoln Constance, Alava, Reino and Bacigalupi, Rimo 1958-6-6 3661 Contra Costa Open country 3 miles southeast of Byron, San Joaquin Valley 11 Comment
  CAS-BOT-BC40759  Erysimum capitatum L. R. Abrams 1921-5-25 8020 Contra Costa Near summit Mount Diablo. Comment
  CAS-BOT-BC40765  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40766  Erysimum capitatum Alice Eastwood; John Thomas Howell 1936-4-19 2151 Contra Costa Antioch sand hills. Comment
  CAS-BOT-BC40763  Erysimum capitatum John Thomas Howell 1926-3-7 1672 Contra Costa Mount Diablo. Near the summit on south side. Comment
  POM224444  Erysimum capitatum var. angustatum Alice Eastwood, J. T. Howell 1936-4-19 s.n. Contra Costa Antioch Comment
  JEPS68964  Erysimum capitatum var. capitatum Edward Lee 1935-3-10 1296 Contra Costa e Antioch (hollow in stablized dune); Antioch Sand Dunes Comment
  JEPS12792  Eschscholzia californica Rimo Bacigalupi with G. T. Robbins 1955-5-4 4982 Contra Costa 1 1/4 mi e Antioch; San Joaquin River front 9 Comment
  SEINET11263885  Eschscholzia californica Barbara Ertter, Tony Morosco 1996-7-27 15039 Contra Costa Cardinet Oaks Road at crossing of Donner Creek.; 0 335 Comment
  UC118493  Eschscholzia californica T. S. Brandegee May 1883 Contra Costa Antioch Comment
  UC125904  Eschscholzia californica Katharine Brandegee 1908-6-16 4 Contra Costa 5 mi s Antioch Comment
  UC2032838 Image available Eschscholzia californica Doran, Andrew Scott 2012-3-20 708 Contra Costa Second highest point on Brooks Island, rocky outcrop overlooking man-made spit. Comment
  HSC16752  Eschscholzia californica Greg Bos 1963-3-15 39 Contra Costa Albany Hill, Albany 15 Comment
  UC2028364  Eucalyptus camaldulensis Barbara Ertter 1998-6-20 16260 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  CDA40312  Eucrypta chrysanthemifolia D. G. Kelch 2005-5-13 5 .273 Contra Costa Carquinez Strait Region; Martinez - West: Ozol Rock and Scenic Drive, near Ozol Rock. Comment
  CDA18018  Euphorbia oblongata R. Fonseca 1999-5-27 PDR 1219265 Contra Costa Along Franklin Canyon Rd, Martinez. 0 Comment
  UC2028283  Euphorbia oblongata Barbara Ertter 1998-6-20 16245 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, roadside near Old Borges Ranch. Comment
  RSA119277  Euphorbia oblongata T. C. Fuller 1958-7-30 s.n. Contra Costa Contra Costa County: bench above creek and along roadside, Hwy 4, 3 miles W of Martinez Comment
  SD215496  Euphorbia oblongata Louis C. Wheeler 1958-8-28 7446 Contra Costa Circa 2 miles southwest of Martinez, 0.3 miles northwest of Glen Frazer on Santa Fe, apparently Franklin Canyon. 1.7 miles west of Martinez at limit on California Route 4. Comment
  CHSC75081  Euphorbia peplus Roger Thom 1987-5-24 15 Contra Costa 1510 Carmel Dr. Walnut Creek. Rose garden. 30 Comment
  UC2028954  Euphorbia serpens Barbara Ertter 2000-7-16 17387 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park. Comment
  JEPS111697  Eurybia radulina D. G. Kelch 2004-4-25 04 .116 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Hill Southwest of large cottonwood. West of Martinez at gated end of Scenic Dr 50 Comment
  UC2028012  Eurybia radulina Barbara Ertter 1997-11-1 15882 Contra Costa South side Mount Diablo, end of spur road east of Knobcone Point, below powerline crossing at head of Alamo Creek drainage. Comment
  JEPS68932  Euthamia occidentalis Edward Lee 1934-9-30 1229 Contra Costa Moraga; just sw of station, tule swamp Comment
  UC1594167  Euthamia occidentalis Jerry Powell 1991-10-10 1617 Contra Costa Antioch National Wildelife Refuge Comment
  UCD35167  Euthamia occidentalis Beecher Crampton 1950-9-9 645 Contra Costa Santa Fe R.R. property, 1 mile north of Richmond. Comment
  CDA37846  Fallopia japonica Fonseca/Niang 2012-7-16 PDR# 1641164 Contra Costa El Sobrante; Circle Dr. 0 Comment
  CAS-BOT-BC278272  Festuca californica J. W. Congdon 1896-5-29 s.n. Contra Costa Mt Diablo Comment
  JEPS75103  Festuca californica W. L. Jepson 1918-6-5 7614 Contra Costa Donner Canyon Mt. Diablo, North Peak 701 Comment
  CAS-BOT-BC278927  Festuca rubra J. Burtt Davy 1897-4-1 s.n. Contra Costa Point Isabel Comment
  CDA28216  Festuca rubra D. G. Kelch, Andrew G. Murdock 2004-4-11 4 .064 Contra Costa Carquinez Strait; Meadow above Carquinez Scenic Drive between Crockett and Bull Valley Staging Area. Comment
  CDA28219  Festuca rubra A. G. Murdock, D. G. Kelch 2004-5-28 269 Contra Costa Carquinez Strait Region; Pinole Peak. Comment
  POM205843  Festuca rubra Jos Burtt Davy 1897-04 s.n. Contra Costa Point Isabel. Comment
  UC606733  Festuca rubra Edward Lee 1936-4-19 1952 Contra Costa ne shore Rock; Red Rock Comment
  CAS-BOT-BC384137  Forestiera pubescens subsp. parvifolia John Thomas Howell 1933-3-29 10905 Contra Costa Canyon below Nortonville Comment
  UCR5932  Fragaria vesca subsp. californica Charles Prentiss 1966-4-5 5 Contra Costa Tilden Park at Indian Camp, meadow west of parking lot Comment
  CAS-BOT-BC62923  Frangula californica subsp. tomentella L. R. Abrams 1916-6-30 5706 Contra Costa Mt. Diablo near Lake. Comment
  CAS-BOT-BC62925  Frangula californica subsp. tomentella H. E. McMinn s.n. Contra Costa Mt. Diablo. Comment
  UC2027914  Frangula californica subsp. tomentella Barbara Ertter 2000-9-30 17529 Contra Costa Diablo Foothills Regional Park, Stage Road in Pine Canyon. Comment
  JEPS25153  Frankenia salina G. Thomas Robbins with John Weiler 1959-5-23 4023 Contra Costa nw extension Brooks Island (on breakwater (partly natural, partly man-made)); San Francisco Bay, Richmond Comment
  JEPS74307  Frankenia salina John Thomas Howell and Gordon H. True 1972-6-29 48919 Contra Costa Byron Hot Springs Road se Byron Comment
  CAS-BOT-BC223391  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo. First small ridge east of Mitchell-Pine divide 975 Comment
  UC691838  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3103 Contra Costa first small ridge e Mitchell-Pine divide; Mount Diablo 1005 Comment
  UC691855  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa first small ridge e Mitchell-Pine divide; Mount Diablo 975 Comment
  POM300679  Fraxinus dipetala Mary L. Bowerman 1935-6-1 3104 Contra Costa Mount Diablo: First small ridge east of Mitchell-Pine divide 976 Comment
  UC169477  Fritillaria affinis Katharine Brandegee April 1913 Contra Costa Eastport, Redwood Canyon, Oakland Hills, electric RR tunnel entrance Redwood Canyon; Eastport, , Oakland Hills Comment
  UC672112  Fritillaria affinis Herbert L. Mason 1925-3-10 1293 Contra Costa Mount Diablo, Sycamore Canyon Sycamore Canyon; Mount Diablo, Sycamore Canyon Comment
  CDA28719  Fritillaria affinis G. D. Barbe, Dick Ramsey 1962-4-19 667 Contra Costa Morgan Territory Road east side of Mount Diablo, 8.5 miles S/ Clayton. 0 Comment
  CAS-BOT-BC130197  Fritillaria agrestis Niall McCarten; V. I. Dains 1986-1-1 03231251 13 Contra Costa W of Camino Diablo & Kellogg Creek Comment
  JEPS7032  Galium andrewsii subsp. gatense Mary L. Bowerman 1930-6-7 283 Contra Costa Meridian Peak summit Mount Diablo Comment
  JEPS111526  Galium aparine D. G. Kelch 2005-5-5 05 .211 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  JEPS112102  Galium aparine A. G. Murdock 2004-3-19 223 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon) 60 Comment
  UC1618054  Galium aparine Donald G. Nelson 1937-3-30 469 Contra Costa along Marsh Creek Rd. between Clayton and Byron Comment
  JEPS23262  Galium divaricatum G. Thomas Robbins 1959-5-23 4031 Contra Costa hillslope about one-half mi e Point San Pablo (overlooking San Pablo Bay); Richmond 7 Comment
  JEPS112105  Galium murale D. G. Kelch 2003-4-3 03 .345 Contra Costa Cummings Skyway South of Cummings Skyway and Crockett Blvd 134 Comment
  JEPS112108  Galium murale D. G. Kelch 2004-3-12 04 .36 Contra Costa Pinole Valley Hillside and canyon above Wright Road. Off of Pinole Valley Road 220 Comment
  CHSC117389  Galium parisiense Barbara Ertter; Susan D'Alcamo 1998-6-12 16168 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit, steep rocky S-facing bowl. 1036 Comment
  UC2028363  Galium parisiense Barbara Ertter 1998-6-20 16261 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Borges Ranch Road at junction to private residences Comment
  UC1143107  Galium tricornutum C. M. Belshaw 1936-5-13 2124 Contra Costa s Horse Valley (Plot 38); Mt. Diablo Quadrangle Comment
  CAS-BOT-BC304348  Gamochaeta pensylvanica Walter & Irja Knight 1967-6-12 s.n. Contra Costa Charles Lee Tilden Regional Park. In the botanical garden Comment
  POM301044  Gamochaeta ustulata Mary L. Bowerman 1938-6-2 3654 Contra Costa Dan Cook Canyon, 100 yards N of camp. 549 Comment
  SBBG50835  Garrya elliptica M. Siri 1974-5-12 33 Contra Costa above old fire rd, E slope of W ridge, Wildcat Cyn, 0.5 mi N of Leneve, Richmond Comment
  UC1122635  Garrya elliptica R. W. Lundh 1933-1-12 187 Contra Costa 0.5 mi s Round Mountain; Concord Quad. 609 Comment
  UC565414  Garrya elliptica Chas. M. Belshaw 1935-12-26 1420 Contra Costa upper Redwood Canyon; Oakland and Berkeley Hills Comment
Read comments
Aug 9 2011
  UC692506  Garrya elliptica Mary L. Bowerman 1933-3-11 1746 Contra Costa Fossil Ridge Mount Diablo (knoll s of 1778 point, of crest of hill) Comment
  UC692509  Garrya elliptica Mary L. Bowerman 1931-5-31 908 Contra Costa Rock City Ridge (= Fossil Ridge) Mount Diablo (just back of crest of the s knoll of 1778 point) Comment
  CAS-BOT-BC169944  Garrya fremontii Lewis S. Rose 1954-6-29 54084 Contra Costa Mt. Diablo, summit 1170 Comment
  UCD102372  Garrya veatchii Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Burma Road at Mount Diablo. 520 Comment
  POM300683  Gastridium phleoides Mary L. Bowerman 1931-5-2 798 a Contra Costa Foot of Eagle Point ridge. Mount Diablo. Comment
  CAS-BOT-BC282611  Gastridium phleoides Mary L. Bowerman 1935-7-22 3191 Contra Costa Hidden Pond, Mount Diablo Comment
  POM300684  Gastridium phleoides Mary L. Bowerman 1933-6-14 2272 Contra Costa Curry Cave Canyon: Ridge between two main forks. Mount Diablo. Comment
  UCD66597  Gastridium phleoides M. Wiesendanger 1926-5-1 1523 Contra Costa Near Richmond. Comment
  CHSC25033  Geranium carolinianum Willis Ball 1975-3-26 512 Contra Costa Contra Loma Regional Park. In area #8. At the base of a large hill ca. 200 yds s of main parking lot at s end of lake. 60 Comment
  UC1555366  Geranium dissectum Jerry Powell 1988-5-18 1532 Contra Costa w Richmond Point Molate Comment
  UC571135  Geranium dissectum A. E. Borell 1928-3-31 78 Contra Costa Richmond Comment
  RSA0029464  Geranium purpureum Barbara Ertter 2001-5-23 17651 Contra Costa Campus of UC Berkeley, southwest corner of Haviland Hall. Comment
  CHSC102194  Geranium rotundifolium Barbara Ertter 1996-6-4 14684 Contra Costa Tilden Regional Park in hills east of Berkeley, restoration site northeast of junction of Grizzly Peak boulevard and GolF Course Drive. Comment
  RSA67217  Gilia achilleifolia Verne Grant, Alva Grant 1948-5-2 8424 Contra Costa in Bear Creek Canyon, 0.5 miles north of summit and ca. 3.8 miles from Orinda-San Pablo road. Comment
  UC691599  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1935-5-8 2970 Contra Costa Muir Area, Mount Diablo Mount Diablo, Muir Area Comment
  UC691627  Gilia achilleifolia subsp. achilleifolia Mary L. Bowerman 1933-5-9 2059 Contra Costa Muir Area , Muir Area (Mount Diablo) Comment
  RSA470088  Gilia achilleifolia subsp. multicaulis L. S. Rose 1941-5-15 41231 Contra Costa Mt. Diablo, w. slope. 396 Comment
  RSA67700  Gilia achilleifolia subsp. multicaulis Verne Grant, Alva Grant 1952-5-7 9137 Contra Costa Pioneer Camp, s.w. of Meridian Peak, Mt. Diablo Comment
  RSA276842  Gilia capitata subsp. staminea James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA566428  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  RSA566429  Gilia capitata subsp. staminea Peter L. Morrell, Donna S. Krause 1993-5-16 239 Contra Costa Contra Costa County, along sides of raod 100m W of 1701 Wilbur Ave, Antioch, betw Southern Pacific tracks and San Joaquin River (0.5 miles W of Hwy 4/160). Comment
  UC30197  Gilia capitata subsp. staminea W. H. Brewer 1862-5-19 1118 Contra Costa n Kirker Pass; n of Kirker Pass Comment
  RSA63718  Gilia capitata subsp. staminea Verne Grant, Alva Grant 1947-4-13 7925 Contra Costa By railroad tracks east of Antioch. Comment
  UC52464  Gilia clivorum H. M. Hall 1901-3-17 1652 Contra Costa Point Richmond Region of San Francisco Bay, Point Richmond Comment
  UC691677  Gilia clivorum Mary L. Bowerman 1935-4-19 2858 Contra Costa near Turtle Rock (dry hillside on opposite side of road); Mount Diablo, near Turtle Rock 457 Comment
  UCR178962  Gilia clivorum Peter L. Morrell, N. Takebayashi 1995-5-21 472 Contra Costa Central Coast, S of Clayton in Mitchell Canyon, above the banks of Mitchell Creek and beneath Eagle Peak 400 Comment
  UC2027812  Gilia clivorum Barbara Ertter with Stu Garrett 1997-3-29 15541 Contra Costa West side Mount Diablo, Mothers Trail. Comment
  UC1554401  Gilia millefoliata Alice M. Ottley 1920-3-6 219 Contra Costa Black Hills San Francisco Bay Region, Black Hills Comment
  UCR124270  Gilia multicaulis L. S. Rose 1935-5-16 35175 Contra Costa Mt. Diablo Comment
  UC691596  Gilia tricolor subsp. tricolor Mary L. Bowerman 1933-3-18 1756 Contra Costa Meridian Peak w Rhine Canyon (Mount Diablo); , Meridian Peak w of Rhine Canyon Comment
  JEPS33662  Githopsis diffusa subsp. robusta Wayne Roderick 1963-5-30 Contra Costa 2.7 mi e Morgan Territory road (or 0.3 mi e of Marsh Creek Stables, on Marsh Creek Rd) Comment
  UC691591  Githopsis specularioides Mary L. Bowerman 1935-5-18 3034 Contra Costa Meridian Peak, n of the summit parking area Mount Diablo 1066 Comment
  SEINET10464620  Githopsis specularioides Bowerman 1935-5-18 BOWERMAN 3034 Contra Costa Meridian Peak north of the summit parking area 1067 Comment
  CAS-BOT-BC303891  Gnaphalium palustre Mary L. Bowerman 1935-6-28 3168 Contra Costa Mt Diablo. Chase Pond. S of summit, by Old Government Trail: dry upper margins of pond 548 Comment
  CDA6050  Grindelia X paludosa D. G. Kelch, A. G. Murdock 2003-8-13 3 .103 Contra Costa Carquinez Strait Region; Martinez Marsh. Comment
  CDA34248  Grindelia camporum D. G. Kelch 2009-5-24 9 .303 Contra Costa Carquinez Strait; S of Ozol, W/SW of Martinez. Comment
  UCD32430  Grindelia camporum Beecher Crampton 1950-6-20 594 Contra Costa Richmond, south of Cutting Blvd, open grassy field immediately adjacent to Carlson Blvd. north of Stege. 15 Comment
  CAS-BOT-BC305219  Grindelia hirsutula Alice Eastwood 1915-6-21 4730 Contra Costa San Leandro Comment
  CAS-BOT-BC305234  Grindelia hirsutula L. R. Abrams 1916-6-30 5713 Contra Costa Mt. Diablo Comment
  JEPS100140  Grindelia hirsutula G. Smick 2003-5-30 GAS 204 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS111071  Grindelia hirsutula Lee Echols 2003-6-17 s.n. Contra Costa N of Lark Drive in central portion of grassland within UC Berkeley's Richmond Field Station, app. .5 miles from Hwy 580 off Bayview Ave, Richmond. 15 Comment
  JEPS111758  Grindelia hirsutula D. G. Kelch 2005-5-13 05 .243 Contra Costa Martinez. South of oil refinery along Railroad tracks in fragment of habitat 28 Comment
  JEPS75304  Grindelia hirsutula L. R. Heckard 1975-11-2 4212 Contra Costa nw side Brooks Island; Richmond Comment
  JEPS75516  Grindelia hirsutula P. F. Yorks 1975-7-31 482 Contra Costa 2.5 km s Bear Creek Road (on Hampton Road, just n of Briones Reservoir); Hampton Road Natural Reserve 200 Comment
  UC1118567  Grindelia hirsutula C. M. Belshaw 1936-5-15 2127 Contra Costa 2 1/2 mi nw Lone Tree Valley; Mt. Diablo Quad. Comment
  UC1584821  Grindelia hirsutula Jerry Powell 1987-5-6 1497 Contra Costa Point Molate Comment
  UC1599357  Grindelia hirsutula G. Thomas Robbins 1959-4-26 4003 Contra Costa just n Richmond-San Rafael Bridge (above shore of San Francisco Bay, s of Castro Pt.); Richmond, Potrero Hills Comment
  UC630415  Grindelia hirsutula Paule Guiguet and Annetta Carter 1939-8-13 1454 Contra Costa Treat Avenue se Concord 53 Comment
  CAS-BOT-BC305236  Grindelia hirsutula L. R. Abrams 1917-9-13 6727 Contra Costa Patterson Pass - east side Comment
  CAS-BOT-BC305241  Grindelia hirsutula John Thomas Howell 1929-9-21 4396 Contra Costa Marsh Creek Road 3.5 miles sw. of Brentwood Comment
  CAS-BOT-BC305249  Grindelia hirsutula R. F. Hoover 1966-8-31 9945 Contra Costa 1.5 mi. e. of Danville, at junction of Tassajara and Freitas Roads Comment
  UCD35139  Grindelia robusta Beecher Crampton 1950-6-20 594 Contra Costa Richmond Comment
  POM300595  Guillenia flavescens Mary L. Bowerman 1935-4-22 2879 Contra Costa North Road 2 miles from North Gate, just W of chaparral. 213 Comment
  UC1601407  Guillenia lasiophylla Katharine Brandegee 1907-5-3 Contra Costa near Antioch; Judsonville Comment
  UC691088  Guillenia lasiophylla Mary L. Bowerman 1933-4-26 1924 Contra Costa ese of North Peak ridge peak; Mount Diablo 609 Comment
  RSA44375  Guillenia lasiophylla L. S. Rose 1949-3-24 49010 Contra Costa 1 mile W of Byron. 30 Comment
  CAS-BOT-BC304582  Gutierrezia californica James McMurphy 1908-10-18 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC304583  Gutierrezia californica Walter Knight 1965-9-7 1172 Contra Costa Overlooking San Joaquin River. Antioch sand dunes Comment
  UC1118612  Gutierrezia californica G. T. Nordstrom 1937-10-28 1406 Contra Costa 1.6 mi nne Somersville; Mt. Diablo Quad. 182 Comment
  UCD85227  Hainardia cylindrica Katharine Brandegee 1916-5-8 s.n. Contra Costa Byron Springs. Comment
  JEPS112751  Hedypnois rhagadioloides Dean W. Taylor 2001-3-28 17621 Contra Costa Berkeley Hills, on slopes about 0.75 miles South of Highway 24 at eastern portal of the Caldecot Tunnel 298 Comment
  UC1795793  Hedypnois rhagadioloides Barbara Ertter, Mary Bowerman 1995-6-11 14249 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment
  CAS-BOT-BC309405  Helenium puberulum L. R. Abrams 1910-10-8 4343 Contra Costa Mt Diablo 609 Comment
  JEPS22068  Helenium puberulum G. Thomas Robbins 1958-7-19 3901 Contra Costa about one-half mi e Point San Pablo (meadow overlooking Pt. San Pablo); Richmond Comment
  UC521669  Helenium puberulum Joseph Andorfer Ewan 1933-10-15 8026 Contra Costa above Indian Ceremonial Spr.; Mt. Diablo Comment
  CDA6433  Helenium puberulum T. C. Fuller 1958-7-3 1270 -58 Contra Costa Carquinez Strait; Highway 4, 4 miles west of Martinez. 0 Comment
  CAS-BOT-BC305322  Helianthella castanea Alice Eastwood 1915-5-30 4475 Contra Costa Mitchel [Mitchell] Canyon, Mt. Diablo Comment
  CAS-BOT-BC305323  Helianthella castanea D. E. Breedlove 1970-4-18 17440 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS21043  Helianthella castanea W. L. Jepson 1922-5-23 9654 Contra Costa Mt. Diablo; summit Comment
  UC2031433  Helianthella castanea Barbara Ertter 1991-6-1 10074 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  UC761942  Helianthella castanea R. F. Hoover 1939-4-13 4014 Contra Costa head (west branch) Markeley Canyon Comment
  CDA31041  Helianthemum scoparium D. G. Kelch, Troy McGregor; Ed Biffin 2010-6-1 10 .229 Contra Costa Mt. Diablo. Knobcone Point Rd. Comment
  JEPS79317  Helianthus annuus Edward Lee 1935-8-13 1615 Contra Costa just e War Memorial (between Walnut Creek and Concord); Ygnacio Valley 15 Comment
  CDA6202  Helianthus californicus D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  CAS-BOT-BC305670  Helianthus gracilentus Mary L. Bowerman 1932-9-24 1592 Contra Costa Mount Diablo. Knoll west of Twin Peaks 457 Comment
  UC2027833  Helianthus gracilentus Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17632 Contra Costa Northwest flank of Mount Diablo, Ginochio property north of park boundary, upper end of Government Road on Long Ridge. Comment
  UC2070511  Helianthus gracilentus Barbara Ertter 2002-5-11 17844 Contra Costa Southwest side of Mount Diablo, Wall Point Road north of Sentinel Rock in Rock City Area. Comment
  CDA33069  Heliotropium curassavicum D. G. Kelch 2010-10-5 10 .422 Contra Costa The Delta; Just east of Antioch bridge. Comment
  UC1050535  Helleborus orientalis N. Floy Bracelin 1944-2-2 1942 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC1050190 Image available Helleborus orientalis var. atrorubens N. Floy Bracelin 1945-3-11 2410 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC305874  Helminthotheca echioides Mary L. Bowerman 1936-10-24 3583 Contra Costa Mount Diablo. North Road, beneath two-story house 131 Comment
  CAS-BOT-BC305876  Helminthotheca echioides Walter Knight; Irja Knight 1978-8-14 3160 Contra Costa Browns Island Comment
  UC201233  Hemizonia congesta subsp. lutescens H. M. Hall 1914-8-23 9861 Contra Costa San Pablo 15 Comment
  JEPS111722  Hemizonia congesta subsp. luzulifolia D. G. Kelch 2004-7-9 04 .294 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  UC1561246  Hemizonia congesta subsp. luzulifolia Barbara Ertter 1989-9-30 8861 Contra Costa e El Cerrito (3 mi nw of Inspiration Point, East Bay Skyline Nat'l Recreation Trail = Nimitz Way); East Bay Skyline Nat'l Recreation Trail, Wildcat Canyon Regi Comment
  UC912566  Hemizonia congesta subsp. luzulifolia Herbert L. Mason 7058 Contra Costa Laundry Farm Oakland Hills Comment
  UC990633  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-9-24 Contra Costa roadside 1 mi n San Ramon Comment
  CAS-BOT-BC314868  Hemizonia congesta subsp. luzulifolia Jean L. Pawek 1964-8-29 608 Contra Costa Tilden Park Comment
  UC217362  Hemizonia congesta subsp. luzulifolia H. M. Hall 1917-5-27 10314 Contra Costa Fish Ranch San Francisco Bay Region, Berkeley Hills Comment
  POM194887  Hemizonia lutescens H. M. Hall 1914-8-23 9860 Contra Costa San Pablo 9 Comment
  RSA81676  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-9-24 s.n. Contra Costa San Ramon Road, above Hayward. Comment
  SEINET7883354 Image available Hemizonia virgata L. S. Rose 1941-1 41467 Contra Costa 2 mi W of Byron Comment
  RSA720838  Herniaria hirsuta subsp. cinerea Barbara Ertter, Lisa Schultheis 1995-4-27 14013 Contra Costa Lime ridge open space NW of Mt. Diablo in Walnut Creek; extension of Valley View road. 152 Comment
  SD9135  Hesperevax caulescens Katherine Curran April 1883 Contra Costa Antioch Comment
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Jan 23 2015
  OBI48583  Hesperevax caulescens Joseph Andorfer Ewan 1936-5-3 9496 Contra Costa Wildcat crk near Orinda road bridge Comment
  JEPS111755  Hesperevax sparsiflora var. sparsiflora D. G. Kelch 2005-5-1 05 .203 Contra Costa Crockett - Edwards Canyon 100 Comment
  JEPS12781  Hesperevax sparsiflora var. sparsiflora Rimo Bacigalupi with G. T. Robbins 1955-5-4 4974 Contra Costa pasture near summit Kirker Pass (along old road (not summit of new freeway bypass)) 274 Comment
  UC2027820  Hesperevax sparsiflora var. sparsiflora Barbara Ertter with Stu Garrett 1997-3-29 15536 Contra Costa West side Mount Diablo, Burma Road on Long Ridge. Comment
  CDA8374  Hesperocnide tenella D. G. Kelch, A. G. Murdock 2003-3-18 3 .334 Contra Costa Carquinez Strait; Canada de Cierbo. Comment
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Oct 13 2009
  JEPS100155  Hesperocnide tenella G. Smick 2003-4-29 GAS 155 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA445902  Hesperocnide tenella Joseph A. Ewan 1936-7-5 9731 Contra Costa Wildcat Creek. Comment
  UC2070646  Hesperocnide tenella Barbara Ertter 2003-3-28 18117 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  CAS-BOT-BC167428  Hesperolinon breweri M. K. Curran 1884-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC167441  Hesperolinon breweri Mary L. Bowerman 1930-6-22 356 Contra Costa Mitchell Canyon. Mt Diable Comment
  CAS-BOT-BC167434  Hesperolinon breweri Mrs. K. Brandegee 1907-6-16 s.n. Contra Costa Hills between Antioch and Marsh Creek, on the easterly side of Mt. Diablo Comment
  CAS-BOT-BC167436  Hesperolinon breweri Volney Rattan 1886-6-1 s.n. Contra Costa Mount Diablo. Near Marsh's Ranch Comment
  CAS-BOT-BC422504  Hesperomecon linearis W. R. Ernst 1958-3-26 214 Contra Costa Between Antioch and the Antioch bridge. Comment
  UC186817  Heterodraba unilateralis F. T. Bioletti 1892-1 Contra Costa Byron Comment
  CAS-BOT-BC143647  Heteromeles arbutifolia John Thomas Howell 1925-10-11 1494 Contra Costa Moraga Ridge, Oakland Hills Comment
  JEPS112075  Heteromeles arbutifolia D. G. Kelch 2003-2-7 03 .38 Contra Costa Franklin Canyon 115 Comment
  OBI62818  Heteromeles arbutifolia John Osborne 1970-11-21 14 Contra Costa 3173 Somerset Dr., Lafayette 76 Comment
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Sep 18 2016
  OBI7752  Heteromeles arbutifolia Dennis Voight 1975-11-26 22 Contra Costa Found in the Briones reservoir area 1.5 mi E of Bear Creek rd 152 Comment
  UC1584840  Heterotheca grandiflora Jerry Powell 1990-3-9 1574 Contra Costa Antioch National Wildlife Refuge Comment
  JEPS125919  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2001-9-18 17913 Contra Costa Hillslopes above Kirker Pass road, drainage of Kirker Creek, along Nortonville Road directly under high-voltage steel tower electrical transmission lines. Comment
  UC2027760  Heterotheca sessiliflora subsp. echioides Barbara Ertter 1996-11-24 15415 Contra Costa Southwest side of Mount Diablo, Wall Point Road across Pine Ridge ca 1/2 airmiles ENE of Macedo Ranch. Comment
  UC692351  Heuchera micrantha var. erubescens Mary L. Bowerman 1931-4-18 718 Contra Costa Sycamore Canyon 335 Comment
  CAS-BOT-BC424186  Heuchera micrantha var. hartwegii L. R. Abrams 1921-5-25 8056 Contra Costa 4 1.2 mi from summit Mt Diablo Comment
  RSA23172  Hibiscus californicus I. L. Wiggins 1938-8-15 9006 Contra Costa Banks of Old River branch of San Joaquin River at Highway #4. Comment
  UC1192275  Hibiscus lasiocarpos Malcolm A. Nobs 1948-9-23 682 Contra Costa 7 mi. s. Kingston (Rock Slough); Rock Slough Comment
  UC691425  Hieracium albiflorum Mary L. Bowerman 1930-10-19 488 Contra Costa s road at Garden-of-the-Gods; Mount Diablo Comment
  UC2012988  Hirschfeldia incana Barbara Ertter with Tony Morosco 1996-7-27 15041 Contra Costa Mount Diablo State Park, Cardinet Oaks Road at crossing of Donner Creek. Comment
  CAS-BOT-BC55300  Hirschfeldia incana John Thomas Howell; Gordon H. True 1972-6-29 48929 Contra Costa Byron Hot Springs Road southeast of Byron. Comment
  UCD84891  Holcus mollis David L. Hanson 1978-3-7 s.n. Contra Costa Contra Costa County. Comment
  JEPS111730  Holocarpha heermannii Dean G. Kelch and Andrew G. Murdock 2004-9-2 04 .329 Contra Costa McEwen Road McEwen Road from Port of Costa - I-4 near summit of Road. Contra Costa County CA. 195 Comment
  UC89060  Holocarpha heermannii T. S. Brandegee 1887-5-1 Contra Costa near Antioch Comment
  CAS-BOT-BC325831  Holocarpha heermannii John Thomas Howell 1930-9-28 5499 Contra Costa 6.3 miles from Byron on teh Marsh Creek Road Comment
  CAS-BOT-BC325839  Holocarpha heermannii R. Bacigalupi 1922-9-24 s.n. Contra Costa Fields between Clayton and Mitchell Canyn, Mt. Diablo Comment
  CAS-BOT-BC325844  Holocarpha heermannii David D. Keck 1933-10-28 2605 Contra Costa 4.5 mi. SE of Martinez on road to Pacheco Comment
  CAS-BOT-BC325846  Holocarpha heermannii Walter Knight 1978-9-16 3271 Contra Costa Briones Regional Park near Maricich Lagoon Comment
  RSA721867  Holocarpha heermannii Barbara Ertter, Brad Olson, Dianne Lake, Seth Adams 1994-9-11 13096 Contra Costa Chaparral Springs addition to Mt. Diablo State Park, north side of Marsh Creek Road at high point southeast of Clayton. Comment
  SD94549  Holocarpha macradenia David J. Powers 1974-10-6 1001 Contra Costa 100-400 feet east of highway 80 and 100-300 yards south of Appian Way, Pinole Comment
  SJSU7097  Holocarpha macradenia D. J. Powers 1974-10-6 1001 A Contra Costa 100-300' E of Interstate Hwy 80 & 100-300 yards S of Appian Way, Pinole Comment
  UC1357615  Holocarpha obconica R. F. Hoover 1965-9-24 9649 Contra Costa foothills w Byron (between Kellogg and Marsh Creeks) Comment
  CAS-BOT-BC320241  Holocarpha obconica Margi Oard 1988-10-9 s.n. Contra Costa Ca. 2 miles east of junction with Deer Valley Road along north side of Marsh Creek Road Comment
  CAS-BOT-BC320249  Holocarpha obconica H. M. Hall 1930-8-7 12846 Contra Costa Vasco Road at Junction 4 miles west of Byron Comment
  CAS-BOT-BC320254  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 1/2 mi. S. of road to Brentwood Comment
  CAS-BOT-BC320256  Holocarpha obconica David D. Keck 1933-10-27 2565 Contra Costa Kellogg Creek, 11 mi. from U.S. 48 on Vasco Road Comment
  UC913100  Holocarpha obconica David D. Keck 1933-11-2 2621 Contra Costa 1/2 mi s road to Brentwood; Deer Valley Comment
  CAS-BOT-BC123420  Holocarpha obconica subsp. autumnalis David Daniels Keck; Jens Chr. Clausen 1933-10-27 2567 Contra Costa 1.6 miles W of Byron, 1.4 miles from junction with Vasco Road Comment
  POM298344  Holocarpha obconica subsp. autumnalis D. D. Keck 1933-11-2 2621 Contra Costa Deer Valley, 0.5 mile S of road to Brentwood. Comment
  CAS-BOT-BC320323  Holocarpha virgata L. S. Rose 1941-10-16 41467 Contra Costa 2 miles west of Byron 33 Comment
  CAS-BOT-BC320325  Holocarpha virgata David D. Keck 1933-11-2 2623 Contra Costa 5 mi. SE. of Clayton on Marsh Creek Road just opposite Mt. Diablo Comment
  UC912326  Holocarpha virgata subsp. virgata Herbert L. Mason 1929-9-21 5431 Contra Costa 3 mi above Clayton (summit of grade, Marsh Creek Road) Comment
  POM179764  Holocarpha virgata subsp. virgata J. T. Howell 1930-9-28 5500 Contra Costa 6.3 miles from Byron on the Marsh Creek Road. Comment
  UC2029132  Holocarpha virgata subsp. virgata Barbara Ertter with David Gowen and Mike Park 2004-6-13 18372 Contra Costa Black Diamond Mines Regional Preserve, forks of Old Homestead Loop Trail. Comment
  JEPS112072  Holodiscus discolor A. G. Murdock 2004-5-28 274 Contra Costa Pinole Peak 205 Comment
  RSA449755  Holodiscus discolor Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  UC12336  Holodiscus discolor Ivar Tidestrom 1895-6-1 Contra Costa Crockett Comment
  UCD85488  Hordeum brachyantherum Beecher Crampton 1956-5-14 3413 Contra Costa 1 mile east of Pacheco, Buchanan Field. Comment
  UCD85625  Hordeum depressum P. B. Kennedy 1929-4-24 s.n. Contra Costa Corner of Franklin Canyon Road near Concord, near Soldiers Monument. Comment
  SEINET10958912  Hordeum hystrix Willis L. Jepson 1910-5-22 Jepson 4053 Contra Costa Very wet places in roadways. Berkeley Hills (Telegraph Canyon). 213 Comment
  CDA9385  Hordeum jubatum D. G. Kelch 2000-4-9 0 .141 Contra Costa 2 miles S of Byron in field N of Holey Road. 0 Comment
  RSA756868  Hordeum marinum subsp. gussoneanum Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8140 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton; near sea level 0 Comment
  UCD85808  Hordeum marinum subsp. gussoneanum Brandegee 1916-5-9 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC289559  Hordeum marinum subsp. gussoneanum A. A. Heller 1928-4-15 14498 Contra Costa Near Byron Comment
  CAS-BOT-BC284776  Hordeum murinum subsp. glaucum Mary L. Bowerman 1933-5-8 2003 Contra Costa Mount Diablo. Fossil Ridge, south face, not far from but out of sight of South Gate 289 Comment
  CAS-BOT-BC284889  Hordeum murinum subsp. leporinum Alice Eastwood 1921-4-18 10264 Contra Costa Antioch Comment
  CHSC21616  Hordeum murinum subsp. leporinum Willis Ball 1974-4-21 430 Contra Costa Contra Loma Regional Park. In area #1. Immediately to the s side of the main parking lot at the s end of the lake. 38 Comment
  JEPS129819  Hordeum murinum subsp. leporinum Dean G. Kelch and Andrew G. Murdock 2003-3-28 03 .081 Contra Costa Rodeo-Lone Tree Point. Comment
  SD234021  Hordeum murinum subsp. leporinum Virginia Pinkus Ryder 1964-4-12 142 Contra Costa Mt. Diablo, Walnut Creek. 244 Comment
  RSA123439  Hordeum murinum subsp. leporinum R. W. Lundh 1933-4-17 229 Contra Costa Bolinas Creek 152 Comment
  UC14231  Horkelia californica subsp. dissita N. K. Chestnut Contra Costa Mt. Diablo Comment
  UC1606349  Horkelia californica subsp. frondosa Barbara Ertter with Dianne Lake 1991-8-18 10677 Contra Costa e;steep N-facing slope above pilings, ne of Bull Valley staging area Crockett; Carquinez Stsrait Regional Shoreline Comment
  UC2062668  Horkelia californica subsp. frondosa Barbara Ertter 2002-8-24 18015 Contra Costa East end of Olympia Trail on NE side of Mount Diablo, at junction with uphill trail near intersection of Marsh Creek Road and Morgan Territory Road. Comment
  JEPS78618  Hydrocotyle verticillata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3290 Contra Costa Browns Isl., Botany Cove Comment
  UC565418  Hypericum perforatum Chas. M. Belshaw 1935-12-27 1418 Contra Costa ridge s. Redwood Canyon; Oakland & Berkeley Hills Comment
  CAS-BOT-BC312936  Hypochaeris glabra Mary L. Bowerman 1930-6-18 337 Contra Costa Mount Diablo. Dan Cook (Rock City) Canyon Comment
  UC2028113  Hypochaeris glabra Barbara Ertter with Christopher Baysdorfer 1998-5-10 16108 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, roadside not far from Valley Vista trailhead. Comment
  UC691451  Hypochaeris glabra Mary L. Bowerman 1933-5-8 2035 Contra Costa Comment
  CAS-BOT-BC311408  Hypochaeris radicata R. E. Frenkel 1964-2-22 359 Contra Costa On Giant Road, 0.4 mile north of ATSF RR crossing, Richmond 15 Comment
  SEINET3875275  Iris douglasiana Kaye H. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4959 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough. SE portion of Bethel Slough.; 0 610 Comment
  UC2029193  Iris pseudacorus Barbara Ertter 2000-7-16 17381 Contra Costa Diablo Foothills Regional Park, riparian strip along Pine Creek between Castle Rock Regional Recreation Area Comment
  CDA32740  Iris spuria E. Slate 2003-6-3 PDR 1406291 Contra Costa San Francisco Bay Area; Hanson Quarry, NW side of entrance. 0 Comment
  UC1616163  Isoetes howellii Terry O'Brien 1997-3-19 3108 A Contra Costa Vasco Caves, approx. 1 mi W of North Vasco Road and 1 mi N of Alameda-Contra Costa county line; access from North Vasco Road ca. 3 mi N of county line 152 Comment
  UC692079  Isoetes howellii Mary L. Bowerman 1935-7-22 3187 a Contra Costa s. side Meridian Peak (w. end Hidden Pond); Mt. Diablo, Hidden Pond 518 Comment
  UCD133390  Iva axillaris M. Wiesendanger 1926-6-26 1566 Contra Costa Richmond. Comment
  UC1050492  Jovellana violacea N. Floy Bracelin 1942-5-24 1412 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  CAS-BOT-BC101879  Juglans californica J. W. Congdon 1894-10-16 s.n. Contra Costa Ft. Mt. Diablo Comment
  JEPS21838  Juglans californica var. hindsii Bryce G. Decker 1958-5-17 88 Contra Costa bank of slough 1 mi s Four Corners (se of Concord); former course of Walnut Creek Comment
  JEPS8459  Juglans californica var. hindsii Rimo Bacigalupi with C. Ritchie Bell 1951-4-13 3253 Contra Costa along creek 1 1/4 mi ne St. Mary's College; Las Trampas Creek 167 Comment
  CAS-BOT-BC102308  Juglans hindsii L. R. Abrams 1916-7-29 6306 Contra Costa Walnut Creek Comment
  POM224483  Juglans hindsii L. S. Rose 1936-4-24 s.n. Contra Costa Marsh Creek, 5 miles E of Clayton. 61 Comment
  RSA0027709  Juncus articulatus Barbara Ertter 1996-9-19 15300 Contra Costa Antioch Marina, edge of bay in Dow Marsh lands. Comment
  JEPS112439  Juncus balticus D. G. Kelch 2004-4-26 04 .134 Contra Costa Point Pinole Pt Pinole 3 Comment
  UCD141351  Juncus balticus subsp. ater M. Wiesendanger 1926-5-1 1472 Contra Costa near Richmond. Comment
  UC1601708  Juncus bufonius J. Burtt Davy 1897-9-4 4080 Contra Costa Stege Comment
  UC1795668  Juncus bufonius var. congestus Barbara Ertter, Mary Bowerman et al. 1995-5-7 14037 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  UC2013049  Juncus occidentalis Barbara Ertter with Lisa Schultheis 1996-9-2 15274 Contra Costa South side Mount Diablo, short distance down trail to Oyster point from Blackhawk Ridge road junction. Comment
  UCD141678  Juncus oxymeris Ann F. Johnson 1978-6-26 AN 50 Contra Costa Shore of San Joaquin River, PG and E site, Antioch Dunes. Comment
  UC691938  Juncus patens Mary L. Bowerman 1932-11-26 1674 Contra Costa between Corral Spring and Boulevard Spring; Mount Diablo, Patens Springs Comment
  HSC14067  Juncus phaeocephalus Leo Koch 1940-6-5 1004 Contra Costa Near highway, 2 mi. S of San Rafael ferry dock Comment
  UCD141773  Juncus phaeocephalus M. Wiesendanger 1926-5-1 1510 Contra Costa near Richmond. Comment
  JEPS112449  Juncus tenuis A. G. Murdock 2004-3-19 224 Contra Costa Luzon Sycamore Ave. just east of Rodeo/Hercules where train crosses Highway 4 (Luzon). Top of ridge to south of road. 60 Comment
  UC691976  Juncus xiphioides Mary L. Bowerman 1930-6-28 383 Contra Costa Canyon Nook Picnic Grounds Mount Diablo 670 Comment
  UC691979  Juncus xiphioides Mary L. Bowerman 1933-6-21 2337 Contra Costa Donner Canyon Mount Diablo 335 Comment
  UC691982  Juncus xiphioides Mary L. Bowerman 1932-8-27 1523 Contra Costa s of Turtle Rock; Mount Diablo Comment
  UC1818996  Juncus xiphioides Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14630 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UC1819019  Juncus xiphioides Barbara Ertter, Diane Lake, Chris Thayer, Bruce Baeyert 1996-5-16 14673 Contra Costa Point Molate Naval Fuel Depot north of San Rafael bridge, edge of San Francisco Bay; wetlands behind facilities at base of ''D'' road. Comment
  JEPS48238  Juniperus californica W. L. Jepson 1918-6-5 7617 Contra Costa North Peak, Mt. Diablo Mt. Diablo, North Peak 822 Comment
  JEPS48303  Juniperus californica W. L. Jepson 1920-9-6 9084 a Contra Costa Mt. Diablo Comment
  UCR168453  Juniperus californica Joseph A. Ewan 1933-10-15 8038 Contra Costa Coast Range, Mount Diablo, southwest slope 1067 Comment
  NY21017  Juniperus californica L. S. Rose 1934-2-28 34043 Contra Costa W slope of Mt Diablo Comment
  POM300616  Juniperus californica Mary L. Bowerman 1930-9-9 449 Contra Costa Mount Diablo: North Peak above Gabriel-Hinks : at top of a draw Comment
  SEINET10531625  Juniperus californica Lewis S. Rose 1936-11-22 Rose 36781 Contra Costa Mt. Diablo. Dry slopes. 760 Comment
  NY790275  Keckiella corymbosa A. D. E. Elmer 07 1903 4956 Contra Costa Mt. Diablo Comment
  POM156900  Keckiella corymbosa A. D. E. Elmer 1903-07 4956 Contra Costa Mount Diablo Comment
  UC1132144  Koeleria macrantha C. M. Belshaw 1936-5-8 2068 Contra Costa se slope Mount Diablo; Mount Diablo Quad., se slope of Mt. Diablo Comment
  UC691220  Koeleria macrantha Mary L. Bowerman 1934-6-9 2549 Contra Costa Fossil Ridge s of 1700 foot point Mount Diablo (Mount Diablo); , Fossil Ridge Comment
  CAS-BOT-BC273618  Koeleria pyramidata Walter Knight 1972-4-1 s.n. Contra Costa Mallard Slough between Port Chicago and Pittsburg Comment
  CDA7170  Lactuca serriola D. G. Kelch 2006-7-14 6 .331 Contra Costa Carquinez Strait; Along Marine Vista Ave immmediately west of Pacheco Slough. East of Martinez. Comment
  UCD159456  Lactuca serriola D. S. Park; K. Yeo 2010-8-7 210 Contra Costa Mt. Wanda hiking trail. Growing on shaded slope w/ Sonchus sp. Common. 85 Comment
  CAS-BOT-BC340536  Lactuca serriola Walter Knight 1978-10-4 3315 Contra Costa Browns Island Comment
  CAS-BOT-BC340541  Lactuca serriola John Thomas Howell; Gordon H. True 1972-7-29 s.n. Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC710613  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa San Leandro Creek Canyon 243 Comment
  CAS-BOT-BC340696  Lactuca virosa John Thomas Howell 1943-8-22 19310 Contra Costa Near head of San Leandro Creek Canyon 243 Comment
  UC912318  Laennecia coulteri Herbert L. Mason 1929-9-21 5443 Contra Costa one mile e of junction of Bordon Highway and road to Antioch; Antioch, Borden Highway Comment
  SEINET7949732  Lamium amplexicaule R. R. Halse 1988-2-20 3546 Contra Costa Along State Hwy. 4 near its junction with Balfour Road, on the S edge of Brentwood. 23 Comment
  UC2028539  Lamium amplexicaule Barbara Ertter 1998-3-1 15920 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Sulfur Creek upstream from Good's Spring. Comment
  UC1051228  Lantana camara N. Floy Bracelin 1942-9-20 2302 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC412726  Lastarriaea coriacea Alice Eastwood 1921-4-18 10275 Contra Costa Antioch Comment
  CDA22719  Lastarriaea coriacea Sue Bainbridge 2007-4-26 Byron-Airport- 5 Contra Costa Byron Airport. Comment
  CAS-BOT-BC337974  Lasthenia californica Alice Eastwood 1923-5-4 11688 Contra Costa Mt. Diablo Comment
  UC34166  Lasthenia californica subsp. bakeri Harley P. Chandler 1901-4-5 994 A Contra Costa Mt. Diablo Comment
  RSA0068474  Lasthenia californica subsp. californica Katie Gallagher, Nick Jensen 2014-4-26 205 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC33073  Lasthenia conjugens Edw. L. Greene 1887-4-17 Contra Costa Antioch Comment
  CAS-BOT-BC324480  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  UC895381  Lasthenia ferrisiae Alice Eastwood 1914-3-14 3761 Contra Costa Byron Springs Comment
  CAS-BOT-BC353330  Lasthenia fremontii R. F. Hoover 1967-4-28 10512 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC353329  Lasthenia fremontii C. F. Baker 1903-4-27 2867 Contra Costa Alkaline plains, Byron. Comment
  CAS-BOT-BC352925  Lasthenia glaberrima A. D. E. Elmer 1903-5-1 4321 Contra Costa Walnut Creek Comment
  UC2070484  Lasthenia glaberrima Barbara Ertter with Joanne Kerbavaz and Alan Whittemore 2003-6-11 18215 Contra Costa Turtle Rock Ponds on east side Pine Creek, below Diablo Ranch on west side Mount Diablo. Comment
  POM301000  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-5-5 2000 Contra Costa Alamo Canyon, toward mouth. 305 Comment
  RSA666474  Lasthenia glabrata subsp. glabrata Barbara Ertter, Chris Thayer 1993-5-7 11705 Contra Costa Ca 0.5 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. 457 Comment
  UC697159  Lasthenia glabrata subsp. glabrata Mary L. Bowerman 1933-4-15 1865 Contra Costa Comment
  JEPS73690  Lasthenia gracilis L. R. Heckard 1968-3-5 1759 Contra Costa Byron 7 Comment
  UC1301065  Lasthenia gracilis Helen K. Sharsmith 1963-4-7 5290 Contra Costa e side Kirker Pass Road (w of Antioch); San Francisco Bay Region 152 Comment
  UC1563907  Lasthenia gracilis Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8119 Contra Costa alkali sink w and adjacent to Clifton Court Forebay (ca. 15 air mi sw of Stockton) 0 Comment
  UC697156  Lasthenia microglossa Mary L. Bowerman 1936-4-23 3405 Contra Costa Mitchell-Pine Divide, northern most point Mount Diablo 838 Comment
  CAS-BOT-BC361121  Lasthenia microglossa Kellogg 1870-1-1 s.n. Contra Costa Antioch Comment
  UC2028062  Lasthenia microglossa Barbara Ertter, Tony Morosco 1998-4-12 16012 Contra Costa Mount Olympia on north side of Mount Diablo. Comment
  UC2070483  Lasthenia microglossa Barbara Ertter 2003-3-28 18116 Contra Costa Round Valley Regional Preserve, ca 1 mile west of trailhead. Comment
  UC90011  Lasthenia platycarpha E. L. Greene 1884-1-1 Contra Costa Byron Springs Comment
  RSA406665  Lathyrus jepsonii subsp. californicus E. E. Stanford 1930-5-24 1515 Contra Costa Marsh Creek Canyon. Comment
  UC2027834  Lathyrus jepsonii var. californicus Barbara Ertter 2001-5-10 17635 Contra Costa North flank of Mount Diablo, SE of Mitchell Canyon trailhead, on traversing road to Mitchell Rock Trail. Comment
  SEINET10487284  Lathyrus sulphureus John G. Lemmon 1878-4-28 Lemmon s.n. Contra Costa Comment
  POM19374  Lathyrus vestitus subsp. vestitus W. L. Jepson 1891-6-9 6801 Contra Costa Contra Costa Comment
  POM19744  Lathyrus vestitus subsp. vestitus C. F. Baker 1903-4-28 2944 Contra Costa Mitchells Canyon, Mt. Diablo. Comment
  RSA720810  Lavatera assurgentiflora Barbara Ertter 1994-6-6 12822 Contra Costa Point Isabel in south Richmond Comment
  UC1795699  Lavatera assurgentiflora Barbara Ertter, Rich Rabeler 1994-6-6 12822 Contra Costa Point Isabel in south Richmond; acacia copse at edge of bay at south side of point. Comment
  CAS-BOT-BC323910  Layia chrysanthemoides R. F. Hoover 1967-4-28 10506 Contra Costa Byron Hot Springs Comment
  CAS-BOT-BC323926  Layia chrysanthemoides Alice Eastwood 1914-3-14 3820 Contra Costa Byron Springs Comment
  UC691554  Layia gaillardioides Mary L. Bowerman 1932-4-16 1351 Contra Costa n of Eagle Point; Eagle Point Ridge Comment
  UC89223  Layia gaillardioides M. K. Curran Contra Costa Mt. Diablo Comment
  CAS-BOT-BC321077  Layia glandulosa Alice Eastwood; John Thomas Howell 1936-4-19 2150 Contra Costa Antioch sand hills Comment
  RSA102175  Layia heterotricha M. K. Curran 1886-05 s.n. Contra Costa Near Antioch. Comment
  CAS-BOT-BC327248  Layia hieracioides David D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Rd., 0.25 mi W of E. portal of Broadway Tunnel 335 Comment
  CAS-BOT-BC327250  Layia hieracioides Mary L. Bowerman 1933-5-3 1969 Contra Costa Mt. Diablo, Due south of summit 2400'; commoner toward saddle (2400'). 731 Comment
  POM267968  Layia hieracioides D. D. Keck 1941-6-5 5307 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  CAS-BOT-BC377910  Layia platyglossa James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  JEPS89794  Layia platyglossa Dean William Taylor 1971-3-28 992 Contra Costa on Mount Diablo, Mount Diablo State Park Mount Diablo; Mount Diablo State Park, Mount Diablo 914 Comment
  SEINET3387416 Image available Layia platyglossa Lewis S. Rose 1933-4-17 33093 Contra Costa Antioch, California Comment
  UC30669  Layia platyglossa Harley P. Chandler 1901-4-5 992 Contra Costa Mt. Diablo Comment
  CAS-BOT-BC370669  Layia platyglossa Mary L. Bowerman 1935-4-26 2918 Contra Costa Summit of Mount Diablo Comment
  CAS-BOT-BC274327  Leersia oryzoides Malcom A. Nobs 1948-9-23 681 Contra Costa Rock Slough, 7 miles south of Kingston Comment
  CDA37946  Leersia oryzoides D. G. Kelch, Mike Perlmutter 2011-9-23 11 .754 Contra Costa Immediately north of Discovery Bay. Comment
  JEPS75303  Lemna gibba L. R. Heckard 1975-11-2 4211 Contra Costa nw side Brooks Island (Richmond); , Brooks Island Comment
  UC692082  Lemna minuscula Mary L. Bowerman 1933-9-9 2430 Contra Costa Mount Diablo, (spring which feeds Frog Pond) Mount Diablo Comment
  CAS-BOT-BC534639  Lemna minuta Ira L. Wiggins 1930-4-18 4607 Contra Costa Jersey Island Comment
  JEPS78824  Lepechinia calycina Edward Lee 1936-5-24 2166 Contra Costa 10 mi from Marsh Creek Road (Morgan Territory); Morgan Territory Comment
  RSA248647  Lepechinia calycina Bonnie C. Templeton 1962-6-10 s.n. Contra Costa Mt Diablo. Comment
  SBBG21163  Lepechinia calycina V. Haraden 1941-7-18 11 Contra Costa near Nortonville 121 Comment
  CAS-BOT-BC88705  Lepidium acutidens R. F. Hoover 1967-4-28 10507 Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC88703  Lepidium acutidens John Thomas Howell 1933-3-29 10894 Contra Costa Nortonville. Comment
  CAS-BOT-BC88706  Lepidium acutidens Lewis S. Rose 1933-3-29 33041 Contra Costa Nortonville. Comment
  CDA37473  Lepidium campestre V. Guise 2012-5-1 PDR# 1649640 Contra Costa Near Old School Road, Tassajara; east of Danville. 0 Comment
  UCD146720  Lepidium chalepense G. F. Hrusa; D. Crowe 1998-5-8 14374 Contra Costa Sacramento-San Joaquin River Delta. On Dow Chemical property at Pittsburg. Adjacent to shore of San Joaquin River. 2 Comment
  UCD169966  Lepidium chalepense R. M. Case 2001-5-10 PDR-P 088777 Contra Costa On Solano Ave., Concord. Comment
  JEPS21345  Lepidium dictyotum var. acutidens J. Burtt Davy May 1898 Contra Costa Danville Mount Diablo Region Comment
  UC856365  Lepidium dictyotum var. acutidens Lewis S. Rose 1937-3-26 37012 Contra Costa Byron 7 Comment
  POM204444  Lepidium dictyotum var. acutidens J. T. Howell 1933-3-29 10894 Contra Costa Nortonville Comment
  POM224388  Lepidium dictyotum var. acutidens Annetta Carter 1935-3-10 753 Contra Costa Kirker Pass road, south of jct with Nortonville Road. 122 Comment
  UCD115342  Lepidium didymum Collector unknown Date unknown s.n. Contra Costa Jersey Island. Comment
  CAS-BOT-BC89713  Lepidium latifolium W. Knight; I. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  CAS-BOT-BC89715  Lepidium latifolium Walter Knight; Joanne Dean 1978-8-14 3170 Contra Costa Brown Island. Comment
  CAS-BOT-BC89716  Lepidium latifolium Walter Knight 1978-8-12 3231 Contra Costa Ca. 0.8 mile east of Point Pinole. Comment
  UC1949386  Lepidium latifolium Barbara Ertter with CNPS 1990-9-16 9649 Contra Costa SE side of Holland Tract NE of Brentwood Comment
  UC2029041  Lepidium latifolium Barbara Ertter 2000-3-30 16899 Contra Costa Mitchell Canyon trailhead, adjacent to horse staging area in parking lot. Comment
  JEPS90380  Lepidium latipes var. latipes Dean Wm. Taylor with Glenn Clifton 1990-3-6 10612 Contra Costa Byron Hot Springs Rd. 1 mi s Holey Road ((Clifton Court Forebay 7 1/2 quadrangle)); San Joaquin Valley 24 Comment
  JEPS116958  Lepidium latipes var. latipes David Gowen 2008-4-6 841 Contra Costa East of Marsh Creek Road on north side of Camino Diablo Road, near stock pond. Comment
  CAS-BOT-BC89891  Lepidium nitidum Alice Eastwood 1914-3-14 s.n. Contra Costa Byron Springs. Comment
  CAS-BOT-BC89894  Lepidium nitidum Alice Eastwood; John Thomas Howell 1936-4-19 2152 Contra Costa 4 miles south of Antioch. Comment
  JEPS53698  Lepidium nitidum W. L. Jepson 1922-4-16 9601 Contra Costa San Pablo Valley Comment
  JEPS100081  Lepidium nitidum var. nitidum G. Smick 2003-3-4 GAS 60 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC10597  Lepidium strictum Harley P. Chandler 1901-4-5 942 Contra Costa Pine Canyon Mt. Diablo Comment
  UC10601  Lepidium strictum F. T. Bioletti 1892-1 Contra Costa Byron Comment
  POM300970  Leptosiphon ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle point ridge, canyon at north end which heads into saddle west of Twin Peaks. 305 Comment
  RSA114063  Leptosiphon liniflorus H. L. Mason 1952-4-14 14265 Contra Costa 3.5 miles S of Byron Comment
  CAS-BOT-BC324117  Lessingia glandulifera var. glandulifera L. S. Rose 1955-10-17 55185 Contra Costa Antioch 15 Comment
  UC761928  Lessingia pectinata var. tenuipes R. F. Hoover 1940-11-23 4696 Contra Costa 2 mi w Byron Comment
  UC1050586  Leucospermum grandiflorum N. Floy Bracelin 1943-1-3 1933 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC444384  Lewisia rediviva Paul F. Covel 1938-7-1 1519 Contra Costa Summit Mt. Diablo Comment
  RSA59614  Lewisia rediviva Verne Grant, Alva Grant 1950-5-13 8895 Contra Costa Saddle between N & Meridian peaks, Mt. Diablo. Comment
  UC1818997  Leymus Barbara Ertter, Tom Schweich, Marion Reeves, & other volunteers 1996-5-11 14629 Contra Costa Little Pine Creek at northwest foot of Mt. Diablo, along trail connecting North Gate Road to Castle Rock Road, Diablo Foothills Regional Park; along stream above stable, riparian vegetation. 91 Comment
  UCD87775  Leymus triticoides M. Wiesendanger 1926-6-1 1527 Contra Costa Richmond. Comment
  CAS-BOT-BC211109  Lilaeopsis masonii Walter Knight; Irja Knight 1977-6-18 s.n. Contra Costa Antioch Sand Dunes, Little Corral site Comment
  OBI12566  Limnanthes douglasii subsp. rosea Robert F. Hoover 1936-3-19 809 Contra Costa Byron Hot Springs Comment
  UC880306  Linanthus androsaceus Lewis S. Rose 1940-4-30 40253 Contra Costa 8 mi se Clayton; Marsh Creek 30 Comment
  JEPS99519  Linanthus androsaceus Mary Bowerman 1977-5-29 Contra Costa Mount Diablo. Russellmann Park. Comment
  UC2028267  Linanthus androsaceus Barbara Ertter 1999-6-12 16712 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, just south of confluence of NE and E forks of Sycamore Creek. Comment
  UC367216  Linanthus ciliatus J. G. Lemmon Contra Costa Mount Diablo Comment
  UC449794  Linanthus ciliatus Chesnut and Drew 1889-4-17 Contra Costa Sommersville Comment
  UC691641  Linanthus ciliatus Mary L. Bowerman 1935-5-22 3042 Contra Costa Eagle Point ridge Mount Diablo (canyon at the n end which heads into saddle w of Twin Peaks) 304 Comment
  JEPS108216  Linanthus ciliatus David Gowen 2005-4-26 269 Contra Costa Mt. Diablo State Park. Near serpentine area just north of Cardinet Oaks Rd. Comment
  JEPS123317  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  JEPS123332  Linanthus parviflorus David Gowen with Chris Thayer 2010-4-30 1090 Contra Costa North of Briones Reservoir. Rocky area on hill above Oursan Trail just west of its junction with Hampton Trail. Comment
  CAS-BOT-BC430619  Lithophragma affine John Thomas Howell 1933-5-14 11280 Contra Costa Hills east of St. Mary's College Comment
  JEPS99949  Lithophragma affine G. Smick 2003-4-3 GAS 67 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  HSC20215  Lithophragma affine Greg Bos 1963-3-9 36 Contra Costa Albany Hill 9 Comment
  SEINET3817186 Image available Lithophragma affine Lewis S. Rose 1933-4-17 33099 Contra Costa Walnut Creek. Comment
  RSA468227  Lithophragma affine subsp. affine H. de 1930-4-6 s.n. Contra Costa [No locality information provided] Comment
  UC114988  Lithophragma bolanderi T. S. Brandegee Apr 1889 Contra Costa Comment
  CDA945  Lithophragma heterophyllum D. G. Kelch 2006-5-4 6 .124 Contra Costa Carquinez Strait; Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. Comment
  CHSC107516  Lithophragma heterophyllum D. G. Kelch 2006-5-4 06 .124 Contra Costa Coast Range: Vaca Canyon, on North facing road cut/bank along Alhambra Valley Road. 162 Comment
  JEPS97558  Lolium multiflorum R. D. Stone 1980-7-13 278 Contra Costa 'Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd) Comment
  UC1948972  Lolium multiflorum William J. Ferlatte, L. Maynard Moe 1970-4-27 1221 Contra Costa San Francisco Bay: Red Rock Island Comment
  UC69727  Lolium multiflorum Mary L. Bowerman 1933-5-25 2199 Contra Costa Mount Diablo; Mount Diablo; Mount Diablo, Alamo Canyon; Alamo Canyon; Mount Diablo, above Wilson's barn Comment
  CAS-BOT-BC283394  Lolium multiflorum Mary L. Bowerman 1938-5-25 3630 Contra Costa Mount Diablo. Arroyo del Cerro, by North Rd 109 Comment
  CAS-BOT-BC269052  Lolium perenne D. E. Breedlove 1971-5-14 19340 Contra Costa Along Sierra Vista Way, Lafayette Comment
  UCD66671  Lolium temulentum K. Brandegee 1916-5-9 Contra Costa Byron Springs. Comment
  CAS-BOT-BC271056  Lolium temulentum Mary L. Bowerman 1933-5-17 2096 Contra Costa Branch of Curry Canyon due south of Olafsons barn, Mount Diablo Comment
  UC691470  Lomatium californicum Mary L. Bowerman 1933-4-22 1886 Contra Costa Curry-Cave Point Trail Mount Diablo 411 Comment
  UC691775  Lomatium californicum Mary L. Bowerman 1931-6-2 914 Contra Costa Mt. Diablo, Gregory Ranch Rd. 518 Comment
  JEPS111601  Lomatium dasycarpum D. G. Kelch 2000-5-22 00 .143 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol Rock. 2 miles west of Martinez on Vista Drive 22 Comment
  UC691420  Lomatium dasycarpum subsp. dasycarpum Mary L. Bowerman 1932-2-28 1095 Contra Costa W of Blackberry Spring; Mount Diablo Comment
  POM287829  Lomatium macrocarpum Lyman Benson 1935-3-16 6264 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  POM132672  Lomatium nudicaule A. D. E. Elmer 1903-05 4322 Contra Costa Mount Diablo Comment
  UC2032839  Lomatium utriculatum Doran, Andrew Scott 2012-3-20 710 Contra Costa Highest point on Brooks Island, southern part of island overlooking quarry. Comment
  UC2031434  Lonicera hispidula Barbara Ertter 1991-6-1 10070 Contra Costa Las Trampas Regional Wilderness in hills W of Danville Comment
  POM181453  Lonicera involucrata Ira L. Higgins 1930-4-18 4594 Contra Costa Levee, east end of Jersey Island. Comment
  CAS-BOT-BC241409  Lonicera japonica Walter Knight; Irja Knight; J. T. Howell; E. McClintock 1978-9-5 3221 Contra Costa Browns Island, old habitation site at west end of island Comment
  JEPS12856  Lonicera subspicata var. denudata Mary L. Bowerman 1931-6-4 922 Contra Costa summit Meridian Peak; Mt. Diablo Comment
  JEPS99523  Lonicera subspicata var. denudata Mary L. Bowerman 1975-6-7 Contra Costa Mount Diablo. By Big Spring fire rd. E of Murchio Gap. Comment
  UC1594184  Lotus corniculatus Jerry Powell 1992-6-17 1650 Contra Costa Richmond Field Station Comment
  UC864780  Lotus crassifolius var. crassifolius Lewis S. Rose 1935-5-16 35176 Contra Costa Mt. Diablo Comment
  CDA27211  Lotus humistratus G. E. Sorensen 1963-5-24 Contra Costa North Gate Road, Mt. Diablo State Park. 0 Comment
  UC15645  Lotus micranthus W. H. Brewer 1862-5-26 1173 Contra Costa Mt. Diablo Comment
  UC33586  Lotus micranthus W. L. Jepson 1891-6-9 Contra Costa at the Fish Ranch Comment
  UC1129013  Lotus purshianus var. purshianus C. M. Belshaw 1936-5-13 2123 Contra Costa n of Horse Valley; Mt. Diablo Quad. 121 Comment
  UC1795732  Lotus scoparius var. scoparius Barbara Ertter, Brad Olson 1994-5-7 12761 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge Comment
  UC1300865  Lotus strigosus Helen K. Sharsmith 1963-4-7 5291 Contra Costa s of Antioch (near Oakley); San Francisco Bay Region 15 Comment
  JEPS21976  Lotus tenuis G. Thomas Robbins 1958-5-24 3837 Contra Costa at corner of S. 28th St. and Hoffman Blvd.; Richmond Comment
  CDA9199  Lotus wrangelianus D. G. Kelch, D. A. Weinstein 2008-4-15 8 .047 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC692325  Lotus wrangelianus Mary L. Bowerman 1933-5-25 2189 Contra Costa w end of s face Osyter Ridge; Mount Diablo 396 Comment
  POM300705  Lotus wrangelianus Mary L. Bowerman 1933-5-2 1949 Contra Costa Below Pioneer Camp; Mount Diablo. 762 Comment
  UC201036  Lupinus Katharine Brandegee 1918-6-5 Contra Costa Richmond Annex Comment
  UC15760  Lupinus affinis unknown 996 Contra Costa Martinez Comment
  CHSC67947  Lupinus albifrons James D. Jokerst 1989-3-31 3077 Contra Costa Rocky hillside E of creek in Brushy Creek Canyon. Comment
  UC1594183  Lupinus albifrons Jerry Powell 1992-6-17 1651 Contra Costa Richmond Field Station Comment
  CAS-BOT-BC201365  Lupinus albifrons var. albifrons James McMurphy 1909-5-20 s.n. Contra Costa Antioch Comment
  POM10982  Lupinus albifrons var. albifrons C. F. Baker 1903-4-25 2823 Contra Costa Antioch. Comment
  CAS-BOT-BC201374  Lupinus albifrons var. albifrons Charles Piper Smith 1922-5-20 3530 Contra Costa Lafayette - trolly line Comment
  JEPS22882  Lupinus arboreus John Weiler with G. T. Robbins 1959-5-23 5991 Contra Costa nw side Brooks Island; San Francisco Bay, nr Richmond, Brooks Island Comment
  UC1073382  Lupinus bicolor George B. Rossbach 1955-3-20 324 Contra Costa sw base Mt. Diablo; sw base Mt. Diablo Comment
  UC1129392  Lupinus bicolor R. W. Lundh 1933-3-25 220 Contra Costa 1 mi w and 1/2 mi n Lafayette Acalanes Grant; Concord Quad. 213 Comment
  UC762917  Lupinus bicolor R. F. Hoover 1935-3-10 306 Contra Costa Antioch Comment
  UCR12074  Lupinus bicolor Coleta A. Lawler 1964-5-8 057 Contra Costa San Francisco Bay Region, Hampton Road, 3 .7 mi south of junction with Alhambra Valley Road; c. 10 miles northwest of Lafayette 46 Comment
  UC2028034  Lupinus bicolor Barbara Ertter 1998-4-4 15944 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UC2070479  Lupinus formosus Barbara Ertter with David Gowen 2006-6-6 18677 a Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south of Moraga. Comment
  RSA0064357  Lupinus latifolius Daisie Huang 2006-7-18 06071805 Contra Costa Ppinehurst Road above Moraga Road. 156 Comment
  UC1607963  Lupinus microcarpus var. densiflorus Donald G. Nelson 1937-4-24 515 Contra Costa e of Mount Diablo (n of Byron along Marsh Creek Road); Marsh Creek Road 60 Comment
  UC201016  Lupinus microcarpus var. densiflorus Katharine Brandegee 1918-6-16 Contra Costa near Virgorit Powder Works; near Vigorit Powder Works Comment
  UC692273  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1930-6-10 293 Contra Costa near Mineral Spring Mount Diablo (Mount Diablo) 396 Comment
  UC697194  Lupinus microcarpus var. densiflorus Mary L. Bowerman 1930-6-28 385 Contra Costa road above junction Mount Diablo (Mount Diablo) Comment
  UCR197907  Lupinus microcarpus var. densiflorus Beecher Crampton 1950-4-22 525 Contra Costa Above site of Judsonville, west of old Empire mine 183 Comment
  UC2027986  Lupinus microcarpus var. densiflorus Barbara Ertter 1998-5-3 16034 Contra Costa east side of Pine Ridge south of Wall Point Road, southwest flank of Mount Diablo. Comment
  JEPS25140  Lupinus microcarpus var. microcarpus G. Thomas Robbins 1959-5-16 4010 Contra Costa just n Pt. Orient, Richmond (western base of Potrero Hills, overlooking San Francisco Bay); overlooking San Francisco Bay, Potrero Hills, n of Pt. Orien Comment
  UC1129577  Lupinus microcarpus var. microcarpus C. M. Belshaw 1936-5-11 2098 Contra Costa 5.25 mi e Danville; Mt. Diablo Quad. 289 Comment
  UC201011  Lupinus microcarpus var. microcarpus Katharine Brandegee 1918-6 Contra Costa Richmond Annex Comment
  UC201019  Lupinus microcarpus var. microcarpus Katharine Brandegee and Harriet E. Phillips 1918-6-16 Contra Costa near Vigorit Powder Works; near Vigorit Powder Works Comment
  UC201024  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa El Dorado St. Richmond Annex (Richmond Annex); , El Dorado St. Comment
  UC201028  Lupinus microcarpus var. microcarpus Katharine Brandegee June 1918 Contra Costa Richmond Annex Comment
  UCD109081  Lupinus nanus P. B. Kennedy 1916-5-11 31 Contra Costa Grand View Terrace; Richmond District. Comment
  UC2028033  Lupinus nanus Barbara Ertter 1998-4-4 15944 a Contra Costa Shell Ridge Open Space northwest of Mount Diablo, SE of Indian Valley School. Comment
  UCSB10857  Lupinus nanus Judy Hayes 1961-3-29 48 Contra Costa collected 2.0 mi N, along Cliffhill Road Danville - Danville and Cliffhill Road Comment
  POM194558  Lupinus polycarpus Y. Mexia 1939-4-21 2378 Contra Costa Moraga Valley Comment
  CDA37273  Lupinus succulentus D. G. Kelch 2011-3-31 11 .078 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  PASA1681  Lupinus succulentus Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  UC2028401  Luzula comosa Barbara Ertter with Dan Norris 1998-6-18 16225 Contra Costa Lower Devil's Slide trail falong W Fork Sycamore Creek (Madrone Canyon), south side of Mount Diablo, along path in woods Comment
  JEPS25121  Luzula macrantha G. Thomas Robbins 1959-4-18 3987 Contra Costa Overlooking San Pablo Bay about 1/2 mi east of Pt. San Pablo, Richmond 7 Comment
  CDA5759  Lycium chinense T. C. Fuller 1964-11-6 12810 Contra Costa Knightsen. 0 Comment
  JEPS107094  Lycopus americanus Barbara Ertter, B. Olson, D. Lake, L. Hosley, and A. Youngson 1991-10-20 10876 Contra Costa Dow Wetlands Preserve, just w. Antioch marina, e. end of marsh across from marina Comment
  SD175830  Lycopus americanus D. G. Kelch 2002-7-15 02 4 Contra Costa Old San Joaquin River channel, east of Brentwood. In low areas of the channel. Comment
  JEPS78624  Lythrum californicum Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3281 Contra Costa Browns Island, Botany Cove Browns Island; , Botany Cove Comment
  UC692634  Lythrum californicum Mary L. Bowerman 1930-6-28 392 Contra Costa Mount Diablo, Lower Silver Spring Lower Silver Spring; Mount Diablo, Lower Silver Spring Comment
  UC692629  Lythrum hyssopifolia Mary L. Bowerman 1932-8-27 1522 Contra Costa s of Turtle Rock (w of the willows, Mount Diablo); Mount Diablo Comment
  UC692638  Lythrum hyssopifolia Mary L. Bowerman 1933-8-2 2393 Contra Costa Mount Diablo, Boulevard Spring, by West Road Boulevard Spring; Mount Diablo, Boulevard Spring Comment
  UCD150881  Lythrum hyssopifolia James A. Neilson Jr. 1972-11-2 3617 Contra Costa Walnut Creek drainage. Elevation estimated using Google Earth by label maker. 1 Comment
  UC1789169  Lythrum tribracteatum Barbara Ertter 2005-8-18 18642 Contra Costa San Pablo Reservoir in East Bay Hills, east of San Pablo Dam Road between Richmond and Orinda; abundant on mudflats left by receding reservoir, mostly dried. Comment
Read comments
May 27 2008
  UC1051167  Mackaya bella N. Floy Bracelin 1944-7-19 2762 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC33221  Madia elegans Jos. Burtt Davy 1895-1 Contra Costa Moraga Pass Comment
  UC697170  Madia elegans Mary L. Bowerman 1936-9-10 3542 Contra Costa Donner Canyon Mount Diablo (by streamlet) 335 Comment
  UC2029015  Madia elegans Barbara Ertter 1999-8-21 16791 Contra Costa Deer Flat Creek crossing on road between Deer Flat and Murchio Gap, NW side of Mount Diablo. Comment
  JEPS111711  Madia exigua D. G. Kelch 2004-5-9 04 .205 Contra Costa Crockett - Edwards Canyon; Upper Edwards Canyon 160 Comment
  UC2028296  Madia exigua Barbara Ertter with Dan Norris 1998-6-18 16215 Contra Costa Rock City area on south side of Mount Diablo, trail to Artist Point. Comment
  CDA28835  Madia gracilis D. G. Kelch, Jessica Kolman 2009-5-29 9 .314 Contra Costa Carquinez Strait; Pinole Valley Park, near ridgetop. Comment
  JEPS111753  Madia gracilis D. G. Kelch 2005-4-24 05 .163 Contra Costa Franklin Canyon 60 Comment
  JEPS21969  Madia gracilis G. Thomas Robbins with S. Galen Smith 1958-6-2 3848 A Contra Costa just e Hercules city boundary (grassy slope along Franklin Canyon Road (State Hwy 4) s and above Refugio Valley) 18 Comment
  JEPS40425  Madia gracilis W. L. Jepson 1896-5-31 Contra Costa near Berkeley (trip to Wildcat Creek) Comment
  UC2028314  Madia gracilis Barbara Ertter, Susan D'Alcamo 1998-6-12 16162 Contra Costa Summit Road to top of Mount Diablo. Comment
  POM267781  Madia gracilis subsp. gracilis D. D. Keck 1941-6-5 5309 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  SEINET3148105  Madia radiata K. Brandegee 1908-4-9 50 Contra Costa Near Antioch Comment
  CDA42364  Madia sativa D. G. Kelch, Vince Guise 2012-7-26 12 .239 Contra Costa Wildcat Canyon Park, Alvarado Unit. Comment
  JEPS21968  Madia sativa G. Thomas Robbins with S. Galen Smith 1958-6-2 3848 B Contra Costa along Franklin Canyon Road (State Hwy 4) south and above Refugio Valley (just e of Hercules city boundary, around edge of earth dump on grassy slope) 18 Comment
  CAS-BOT-BC343579  Madia sativa David D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road, 1/4 mi. W. of East portal of Broadway Tunnel 335 Comment
  POM267969  Madia sativa D. D. Keck 1941-6-5 5310 Contra Costa Berkeley Hills, Fish Creek Road 1/4 mile W of E portal of Broadway Tunnel. 335 Comment
  RSA577468  Maianthemum racemosum subsp. amplexicaule Joseph A. Ewan 1934-6-8 8755 Contra Costa South Fork Marsh Creek, Mt. Diablo 305 Comment
  CAS-BOT-BC206242  Malacothamnus fasciculatus H. M. Hall; F. M. Essig 1916-5-30 10131 Contra Costa Mt. Diablo, on the westerly side north of Pine Canyon 290 Comment
  CAS-BOT-BC206329  Malacothamnus fremontii Walter Knight; Irja Knight 1967-4-2 s.n. Contra Costa Nortonville. Comment
  CAS-BOT-BC206330  Malacothamnus fremontii Lewis S. Rose 1954-6-29 54081 Contra Costa Nortonville. Comment
  UC692618  Malacothamnus fremontii Mary L. Bowerman 1938-6-30 3696 Contra Costa below Blue Oak Flat; Mount Diablo 762 Comment
  UC692676  Malacothamnus hallii Mary L. Bowerman 1933-6-3 2223 Contra Costa 2 mi by road from North Gate; Mount Diablo Comment
  SEINET10853324 Image available Malacothamnus hallii John Thomas Howell 1931-5-12 Howell 6470 Contra Costa Nortonville. Comment
  CAS-BOT-BC345270  Malacothrix californica Kellogg No date on label s.n. Contra Costa Antioch Comment
  UC76038  Malacothrix floccifera Milo S. Baker 1904-6-24 Contra Costa Summit of Mt. Diablo Comment
  UC831151  Malacothrix floccifera Mrs. E. C. Sutliffe 1920-5-30 Contra Costa Mt. Diablo Comment
  JEPS111543  Malva nicaeensis D. G. Kelch 2004-5-21 04 .220 Contra Costa Crockett - Edwards Canyon Edwards Creek EBRP Staging Area near Greenhouse 24 Comment
  CDA15229  Malva parviflora G. F. Hrusa, D. Crowe 1998-5-8 14358 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  JEPS111542  Malva pseudolavatera D. G. Kelch 2003-3-28 03 .83 Contra Costa Rodeo - Lone Tree Point 2 Comment
  CDA35747  Malvella leprosa D. G. Kelch, Andrew G. Murdock 2004-7-9 4 .306 Contra Costa Carquinez Strait; Alhambra Creek, Martinez, near Muir gravesite, Arroyo del Hambre. Comment
  OBI12334  Malvella leprosa Robert F. Hoover 1966-8-31 9944 Contra Costa 1.5 mi E of Danville on Tassajara rd Comment
  UC2029012  Malvella leprosa Barbara Ertter with Dan Norris 1999-11-14 16849 Contra Costa Black Diamond Mines Regional Preserve, south of parking area for Somersville townsite. Comment
  JEPS100091  Marah fabacea G. Smick 2003-2-25 GAS 57 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1050529  Marah fabacea N. Floy Bracelin 1943-2-28 1950 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  HSC7016  Marah fabacea Greg Bos 1963-3-9 29 Contra Costa Pinole Valley Rd., SE of Pinole 61 Comment
  CHSC46893  Marah oregana R. A. Schlising 1965-4-6 2780 Contra Costa Berkeley Hills. Comment
  CHSC46894  Marah oregana R. A. Schlising 1964-4-14 2704 Contra Costa Berkeley/Oakland Hills. Comment
  UC1586020  Marsilea vestita subsp. vestita Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8131 Contra Costa ca. 15 air mi sw Stockton (w and adjacent to Clifton Court Forebay); se Contra Costa Co. Comment
  UC89519  Matricaria discoidea T. S. Brandegee May 1890 Contra Costa Antioch Comment
  CAS-BOT-BC348260  Matricaria occidentalis R. E. Frenkel 1963-5-15 200 Contra Costa East of Bixler Road between Marsh Creek Road and Point of Timber Road, about 200 yards north of pink house on west side of Road, and about 10-20 m. east of fence Comment
  CDA4192  Medicago lupulina G. D. Barbe 1978-7-2 2409 Contra Costa 24th Street and Preble Court, Richmond. 0 Comment
  JEPS75470  Medicago polymorpha P. F. Yorks 1975-5-15 395 -2 Contra Costa on Hampton Rd ca 1.5 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Preserve Comment
  CAS-BOT-BC271216  Melica californica L. R. Abrams 1921-5-25 8065 Contra Costa On road to summit, Mt. Diablo Comment
  CAS-BOT-BC271220  Melica californica Mary L. Bowerman 1935-5-8 2975 Contra Costa Knoll on spur south of Pioneer Camp, Mount Diablo 762 Comment
  SEINET3383301 Image available Melica californica Mary Bowerman 1991-5-21 Contra Costa Mount Diablo. Jim White Trail(Deer Flat Rd) South side of Juniper Moses Rock Trail near Deer Flat junction Comment
  UC1055813  Melica californica Frank W. Gould 1941-4-20 1282 Contra Costa near Richmond Comment
  UC691173  Melica californica Mary L. Bowerman 1933-6-3 2236 Contra Costa Ransom Point trail Mount Diablo (Mount Diablo) Comment
  UCD87145  Melica californica P. B. Kennedy 1916-5-1 s.n. Contra Costa Pinehurst. Comment
  UCD38556  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  UCD87814  Melica imperfecta Beecher Crampton 1956-5-14 3405 Contra Costa Southern boundary of Mt. Diablo State Park. Comment
  UCD87871  Melica imperfecta P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  CDA32513  Melica imperfecta A. A. Beetle 1941-3-28 Contra Costa Near Orinda 0 Comment
  CDA29038  Melica torreyana D. G. Kelch 2006-5-7 6 .164 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  JEPS75104  Melica torreyana W. L. Jepson 1918-6-5 7600 Contra Costa Donner Canyon; Mt. Diablo 533 Comment
  RSA295077  Melica torreyana Robert A. Norris, John L. Inase 1981-4-25 4143 Contra Costa Alongside Abrigo Valley trail, west part of Briones Regional Park (ca. 3 miles NNW Lafayette). 220 Comment
  RSA762303  Melica torreyana William J. Ferlatte, L. M. Moe 1970-4-27 1228 Contra Costa San Francisco Bay, Red Rock Island. Comment
  SEINET3449596  Melica torreyana Dean G. Kelch, Andrew G. Murdock 2003-3-21 DGK 3 .055 Contra Costa Martinez West, Martinez West, Ozol Rock and Scenic Drive 40 Comment
  JEPS128777  Melilotus albus Kevin Hintsa 1999-8-17 Contra Costa Mount Diablo State Park, Pine Canyon in flats adjacent to willow forest. Comment
  CDA15238  Melilotus indicus G. F. Hrusa, D. Crowe 1998-5-8 14369 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg. Comment
  CDA1105  Melissa officinalis D. G. Kelch, A. G. Murdock 2004-7-9 4 .293 Contra Costa Carquinez Strait; Crockett; Elkhorn Creek. Comment
  JEPS25238  Melissa officinalis G. Thomas Robbins 1959-8-1 4115 Contra Costa ca. 1 1/2 mi. s.e. St. Marys College (Las Trampas Creek); Las Trampas Creek 182 Comment
  RSA0033935  Mentha spicata var. spicata Barbara Ertter, Mary L. Bowerman 1996-11-1 15394 Contra Costa North base of Mount Diablo, downstream from Mitchell Canyon parking lot. Comment
  UC1481551  Mentzelia lindleyi Neil Havlik 1980-5-10 912 Contra Costa 3 mi E Crockett (Carquinez Scenic Drive) Comment
  UC19628  Mentzelia lindleyi unknown 1125 Contra Costa Hills n Coal Mine; Mt. Diablo Comment
  JEPS42778  Mentzelia micrantha W. L. Jepson 1919-6-8 8331 Contra Costa Mt. Diablo Comment
  JEPS111949  Mercurialis ambigua D. G. Kelch 2004-4-3 04 .44 Contra Costa Crockett - Edwards Canyon Rare weed at nursery at Edwards Creek Staging Area (EBRPD) near barn. 24 Comment
Read comments
Jun 14 2011
  UCD16073  Microlepia strigosa Glen Holstein 1988-2-12 s. n. Contra Costa California. Contra Costa County: City of Danville. Comment
  CDA32927  Micropus californicus D. G. Kelch 2009-5-24 9 .296 Contra Costa Carquinez Strait; Carquinez Loop Trail S of Ozol, S-SW of Martinez, nr Wolcott Ln . Comment
  JEPS100177  Micropus californicus G. Smick 2003-4-29 GAS 149 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UCD32380  Micropus californicus Beecher Crampton 1950-4-22 521 Contra Costa above site of Judsonville, above old Empire Coal Mine. 152 Comment
  UC1795729  Micropus californicus var. californicus Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14223 Contra Costa Mt. Diablo southeast of Walnut Creek, north-facing slope north of Curry Point, grassy semishade at edge of oak woodland. 518 Comment
  CHSC67881  Microseris acuminata James D. Jokerst 1989-3-28 3052 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  RSA537696  Microseris acuminata Barbara Ertter, Jim Jokerst, Dave Magney 1989-4-5 8118 Contra Costa West and adjacent to Clifton Court Forebay, 15 air miles SW of Stockton. 0 Comment
  CAS-BOT-BC348788  Microseris campestris Niall McCarten; V. I. Dains 1986-1-1 03231522 41 Contra Costa Ecos East Contra Costa County. W of Camino Diablo & Kellogg Creek Comment
  UCD77859  Microseris douglasii Robert E. Preston 1997-3-8 1018 Contra Costa Black Diamond Mines Regional Park, along Stewartsville Trail. 91 Comment
  JEPS17890  Microseris douglasii subsp. douglasii Rimo Bacigalupi with G. T. Robbins 1954-3-26 5526 A Contra Costa field along Deer Valley Road; Deer Valley 76 Comment
  UC691459  Microseris douglasii subsp. douglasii Mary L. Bowerman 1931-4-4 638 Contra Costa 2 mi by road from North Gate (west entrance); Mount Diablo Comment
  CAS-BOT-BC348883  Microseris douglasii subsp. douglasii Walter Knight; Irja Knight 1979-4-22 3442 Contra Costa At s.e. corner of Appian Way and Interstate 80 in Pinole Comment
  CAS-BOT-BC348885  Microseris douglasii subsp. douglasii Brandegee No date on label s.n. Contra Costa Antioch Comment
  UC1795746  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14241 Contra Costa South side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road, clay soil. 426 Comment
  UC1818950  Microseris douglasii subsp. douglasii Barbara Ertter, Tony Morosco, Lynne Hosley 1995-5-29 14240 Contra Costa S side Mount Diablo, edge of open meadow in flats near head of Curry Creek along road to Sheepherders Springs from Sloan Road 426 Comment
  POM181472  Microseris douglasii subsp. tenella I. L. Wiggins 1930-4-17 4560 -a Contra Costa One mile east of Mountain House, on road to Byron. Comment
  UC1818979  Microseris elegans Barbara Ertter, Dale Sanders, Dan Norris 1994-3-26 12336 Contra Costa Peyton Hill east of I-680 east of Martinez, south of Waterfront Road, west foot of hill near edge of marsh, openings in grassland. Comment
  UC691443  Microseris sylvatica Mary L. Bowerman 1935-5-22 3053 Contra Costa canyon at n end Eagle Point ridge (which heads into saddle w of Twin Peaks, near head of canyon); Mount Diablo Comment
  UC1055920  Mimetanthe pilosa N. Floy Bracelin 1944-9-9 2799 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley Comment
  JEPS75461  Mimulus aurantiacus var. aurantiacus P. F. Yorks 1975-5-31 430 Contra Costa ca. 1.6 km s Bear Creek Road (on Hampton Road, n of Briones Reservoir); Hampton Road Natural Preserve Comment
  JEPS78823  Mimulus aurantiacus var. aurantiacus Edward Lee 1936-5-24 2165 Contra Costa 10 mi from Marsh Creek Road; Morgan Territory Comment
  HSC90665  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-3 1107 Contra Costa SW base of Mt. Diablo, E of Danville. 2.6 mi. NE of Blackhawk and Diablo Rds. along Mt. Diablo Scenic Blvd. and South Gate Rd. 378 Comment
  UC691649  Mimulus douglasii Mary L. Bowerman 1935-4-26 2906 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  SEINET4678015  Mimulus guttatus K. Thorne, L. Thorne; N. Thorne; J. Chandler 1986-7-27 4954 Contra Costa Franks Tract, along San Joaquin River delta. Sand Mound Slough, SE portion of Bethel Slough.; 0 610 Comment
  JEPS116944  Mimulus latidens David Gowen 2008-4-16 862 Contra Costa Just south of parking area for Black Diamond Mines Regional Preserve on Frederickson Road. Comment
  JEPS99598  Mimulus rattanii Mary Bowerman 1978-5-26 Contra Costa Mount Diablo, between Lower Summit parking area and road. Comment
  UC8130  Minuartia douglasii W. H. Brewer 1862-5-5 1048 Contra Costa near Walnut Creek (sw of Camp 69) Comment
  JEPS108214  Moehringia macrophylla David Gowen 2005-4-25 266 Contra Costa Mt. Diablo State Park. North Peak Trail, ca 1/4 mile south of Prospectors Gap. Comment
  UC25455  Monardella douglasii Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC32611  Monardella douglasii Bolander 2499 Contra Costa Moraga Valley Comment
  CAS-BOT-BC220513  Monardella villosa Katharine Brandegee 1907-7-4 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC220515  Monardella villosa Mary L. Bowerman 1938-6-21 3689 Contra Costa Mount Diablo Comment
  CHSC67994  Monardella villosa subsp. villosa James D. Jokerst 1987-6-16 2915 Contra Costa Livermore Valley, 0.3 mi W of Vasco Rd. and +/- 200 m SW of a dirt track. Comment
  POM223335  Monolopia lanceolata L. S. Rose 1935-5-16 35166 Contra Costa Mt. Diablo Comment
  UC1484375  Monolopia major Dale E. Johnson 1975-4-12 188 Contra Costa near Byron (2.6 km (1.6 mi) w of Byron Hwy (Brentwood-Bethany road), on Camino Diablo, just w of road summit, near sand quarry) Comment
  UC407362  Monolopia major Ira L. Wiggins 1930-4-17 4584 Contra Costa 0.25 mi s Byron Comment
  UC618928  Monolopia major R. F. Hoover 1938-3-25 2899 Contra Costa Lone Tree Valley Comment
  UC691684  Monolopia major Mary L. Bowerman 1932-4-27 1365 Contra Costa ridge w Riggs Canyon (s-face of Oyster Ridge); Mount Diablo, Oyster Ridge Comment
  UC7869  Montia linearis H. M. Hall 1901-3-8 1626 Contra Costa Las Trampas Canyon; San Francisco Bay Region, Las Trampas Canyon Comment
  UC2028284  Myoporum laetum Barbara Ertter 1998-6-20 16240 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, along path just outside Wiget Lane entrance. Comment
  SEINET5624176 Image available Myosotis sylvatica Betsey Northman 1961-1 36 Contra Costa Berkeley Hills, U.C. property; Dirt road leading N. toward Strawberry Canyon area 91 Comment
  UC1101328  Myosurus minimus Herbert L. Mason 1952-4-14 14262 Contra Costa 2.5 mi s of Byron Comment
  UC1731501  Myosurus minimus Dean W. Taylor 1992-4-16 12391 Contra Costa s of Bryon Hot Springs (San Joaquin Valley); San Joaquin Valley 45 Comment
  UC1738113  Myosurus minimus D. E. Stone 1957-3-15 14 -20 Contra Costa 3 mi S of Byron ( on road to Herdlyn) Comment
  CAS-BOT-BC83299  Myosurus minimus Katharine Brandegee 1909-4-24 s.n. Contra Costa Antioch and Marsh Creek. Comment
  UC1738114  Myosurus minimus subsp. apus D. E. Stone 1955-8-29 8 -48 Contra Costa 3 mi S of Byron (on the road to Herdlyn) Comment
  CHSC69649  Myosurus sessilis James D. Jokerst 1989-3-28 3059 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  UC1101332  Myosurus sessilis Herbert L. Mason 1952-4-26 14270 Contra Costa 3.5 mi s of Byron Comment
  UC2048019  Myriopteris covillei C. J. Rothfels with F. W. Li, J. Sinton, R. Rahaman 2016-1-31 4700 Contra Costa Mount Diablo. Along the Waterfalls Trail shortly after it branches off from the Donner Creek Fire Road. Comment
  OBI72036  Najas guadalupensis Barbara Ertter, Brad Olson 1991-9-28 10838 Contra Costa San Pablo Reservoir between Orinda and El Sobrante 91 Comment
  UC1618349  Najas guadalupensis Barbara Ertter, Lynne Hosley 1991-9-22 10825 Contra Costa se side of Lafayette Reservoir in hills sw of Lafayette; Lafayette Reservoir 137 Comment
  UC2028279  Narcissus pseudonarcissus Barbara Ertter with Laura Fujii 1999-3-7 16485 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, near Alvarado Staging area at NW end of park, along hiking road. Comment
  CDA29014  Nassella lepida D. G. Kelch 2006-5-7 6 .163 Contra Costa Carquinez Strait.; Crockett. Upper Edward s Canyon. Comment
  CDA32560  Nassella lepida D. G. Kelch, Andrew G. Murdock 2004-4-11 4 .068 Contra Costa Carquinez Strait; Bull Valley Prairie. EBRPD. Between Crockett and Pt. Costa. Comment
  CAS-BOT-BC259901  Nassella lepida Mary L. Bowerman 1935-6-8 3125 Contra Costa Mount Diablo. West road 2 miles from entrance, gully W of chapparal Comment
  UC790940  Nassella pulchra A. A. Beetle 1941-3-28 1718 Contra Costa open cut Orinda Comment
  UCD87459  Nassella pulchra Beecher Crampton 1955-4-11 2472 Contra Costa city of Richmond, East Shore and San Pablo Avenues. Comment
  CAS-BOT-BC260132  Nassella pulchra L. R. Abrams 1921-5-25 8043 Contra Costa At spring 4.5 miles from Summit Mount Diablo Comment
  JEPS116847  Navarretia heterandra David Gowen 2007-4-29 688 Contra Costa Just southeast and outside of Black Diamond Mines Reg. Preserve. Comment
  LA206696  Navarretia mellita John Thomas Howell; 1938-6-30 13938 Contra Costa head of Siesta Valley Comment
  UC133782  Navarretia mellita Katharine Brandegee Sep 1892 Contra Costa Oakland Hills, Redwood Peak Redwood Peak; Oakland Hills, Redwood Peak Comment
  SEINET11268198  Navarretia mellita Barbara Ertter 1999-6-12 16720 Contra Costa Knobcone Point Road on south side of Mount Diablo, head of NE fork of Sycamore Creek.; 0 488 Comment
  SEINET12271290  Navarretia mellita J. T. Howell 1938-1 13938 Contra Costa head of Siesta Valley Comment
  SEINET196200  Navarretia mellita Herbert L. Mason 1945-6-12 Contra Costa Ridge SE fo Mount.Diablo near summit of road up Marsh Creek. Comment
  UC2013027  Navarretia mellita Barbara Ertter with Travis Columbus 1990-6-10 9100 Contra Costa NE corner of Briones Regional Park, Briones Hills W of Pleasant Hill; trail heading down ridge on N side of Briones Peak. Comment
  UCD48584  Navarretia mellita H. L. Mason 1945-6-12 12588 Contra Costa Ridge south east of Mount Diablo near summit of road up Marsh Creek, Contra Costa County, California. Comment
  JEPS116946  Navarretia nigelliformis subsp. radians David Gowen 2008-4-16 860 Contra Costa West end of Horse Valley. Banks of drainage south of #857. Comment
  RSA469883  Navarretia pubescens Thekla Mohr 1917-07 3155 Contra Costa Mount Diablo Comment
  UC691612  Navarretia pubescens Mary L. Bowerman 1930-6-10 298 Contra Costa Oak Knoll Picnic Grounds Mount Diablo Comment
  JEPS112009  Navarretia squarrosa Christopher Thayer 1995-6-5 Contra Costa West of Pinole Peak 274 Comment
  UCD36023  Navarretia squarrosa Beecher Crampton 1949-6-5 469 Contra Costa Contra Cost County, along Highway 40, Pinole to San Pablo, above Garrity Creek, on top of West Hills. 30 Comment
  UC23887  Navarretia viscidula Edw. L. Greene 1892-6-19 Contra Costa Walnut Creek Comment
  JEPS49756  Nemophila heterophylla Rimo Bacigalupi, and Alice Howard, and Paul Hutchison 1967-3-29 9220 Contra Costa on w slope Las Trampas Ridge Upper reaches Bolinger Canyon, w slope Las Trampas Ridge (Upper reaches of Bolinger Canyon) 381 Comment
  JEPS75500  Nemophila heterophylla P. F. Yorks 1974-4-6 128 Contra Costa on Hampton Road in Hampton Road Natural Reserve ca 1.4 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve, n of Briones Reservoir 180 Comment
  PASA2110  Nemophila heterophylla Annetta Carter 1929-3-31 Contra Costa near Clayton Comment
  UC146146  Nemophila heterophylla Joseph P. Tracy 1903-4-18 1797 Contra Costa e slope of Bald Peak San Francisco Bay Region, , Bald Peak (Berkeley Hills) 304 Comment
  UC592124  Nemophila heterophylla H. L. Mason 1928-4-29 4430 Contra Costa Sycamore Canyon , Sycamore Canyon (s slope Mount Diablo) Comment
  UC67125  Nemophila heterophylla Harley P. Chandler 1901-4-5 948 Contra Costa Pine Canyon , Pine Canyon (Mt. Diablo) Comment
  POM204479  Nemophila heterophylla J. T. Howell 1933-5-14 11218 Contra Costa Hills east of St. Mary s college Comment
  JEPS25353  Nemophila menziesii Rimo Bacigalupi with Paul C. Hutchinson and John Weiler 1959-3-19 6963 Contra Costa 2.4 mi w Byron (s-facing low hill along Camino Diablo, 0.3 mi e of junction with Vasco Road); along Camino Diablo, w of Byron 60 Comment
  UC592190  Nemophila menziesii H. L. Mason 1932-3-20 6837 Contra Costa Antioch sand hills Comment
  JEPS127095  Nemophila menziesii var. menziesii Lowell Ahart, Josephine Guardino 2016-4-19 20797 Contra Costa 2.3 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  RSA421347  Nemophila menziesii var. menziesii Mark Morris 1929-2-22 s.n. Contra Costa Mt. Diablo. Comment
  UC596370  Nemophila pedunculata R. F. Hoover 1938-3-5 2816 Contra Costa mouth of Kirker Creek Canyon Comment
  UC651281  Nicotiana glauca Ira L. Wiggins 1930-4-18 4604 Contra Costa e end Jersey Island Comment
  UC2027913  Nymphaea Barbara Ertter 2000-9-30 17539 Contra Costa West side Mount Diablo, pond on west side of Briones-Mount Diablo Trail south of Stonegate Trail junction. Comment
  UC691108  Oemleria cerasiformis Mary L. Bowerman 1931-5-21 891 Contra Costa Curry Cave Point trail Mount Diablo (just above stream bed on w side) Comment
  SBBG39495  Oemleria cerasiformis L. S. Rose 1970-3-2 70011 Contra Costa 2 mi NW of Canyon 213 Comment
  UCSB25483  Oemleria cerasiformis Rieser, D. 1966-4-5 Contra Costa Tarry In., 0.8 mi. north from Sleepy Hollow Road, Orinda. 304 Comment
  CDA21549  Oenothera deltoides subsp. cognata D. G. Kelch 2000-9-4 0 .145 Contra Costa CA Delta; N Oakley. Comment
  CAS-BOT-BC171597  Oenothera deltoides subsp. howellii Walter Knight 1965-3-1 s.n. Contra Costa Antioch dunes. Comment
  JEPS43995  Oenothera deltoides subsp. howellii Chesnut and Drew 1889-4-18 Contra Costa Antioch Comment
  UC914280  Oenothera deltoides subsp. howellii Verne Grant and Alva Grant 1947-4-13 7926 Contra Costa sand hills by river e Antioch Comment
  UC971924  Oenothera deltoides subsp. howellii P. D. Hurd 1952-5-26 Contra Costa one mi e Antioch (in sand dunes close to w margin of river near its mouth); San Joaquin River 30 Comment
  RSA119417  Oenothera deltoides subsp. howellii William M. Klein 1958-6-9 438 Contra Costa Sandhills N of Antoch, along the San Joaquin River Channel. 2 Comment
  SDSU8854  Oenothera ovata J. Godsil 1952-4-8 158 Contra Costa El Sobrante, hills toward Pinole. Comment
  JEPS111550  Olea europaea D. G. Kelch 2004-3-5 04 .1 Contra Costa Martinez - Rankin Open Space Rankin Park, Martinez, Contra Costa County, CA 80 Comment
  UC2028243  Olea europaea Barbara Ertter, Tony Morosco 1998-9-18 16419 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC2027756  Orobanche bulbosa Barbara Ertter, Holly Forbes 1997-4-20 15560 Contra Costa North base of Mount Diablo, dogleg in Eagle Peak Trail from Coulter Pine Trail to Twin Peaks, chamissal. Comment
  UC1076301  Orobanche fasciculata Herbert L. Mason 1926-5-7 2704 Contra Costa Near Summit of Mount Diablo. Comment
  CAS-BOT-BC238373  Orthocarpus James McMurphy 1910-4-9 s.n. Contra Costa Antioch Comment
  SEINET3821123 Image available Orthocarpus erianthus Lewis S. Rose 1932-3-26 32115 Contra Costa Open hillsides, Nortonville. Comment
  SEINET3840906  Oxalis carnosa Unknown 1976-3-25 2117 Contra Costa International Succulent Institute, 10 Corte Sombrita, between Maraga and Orinda Comment
  UC691357  Packera breweri Mary L. Bowerman 1932-5-6 1427 Contra Costa Mitchell Canyon Mount Diablo 251 Comment
  UC2028147  Packera breweri Barbara Ertter 1998-4-4 15966 Contra Costa Shell Ridge Open Space northwest of Mount Diablo, and Indian Valley School. Comment
  UC1051229  Pandorea jasminoides N. Floy Bracelin 1942-9-20 2301 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CDA33874  Panicum capillare Diveney, Denijs 2008-9-17 PDR# 1454350 Contra Costa Concord; Contra Costa Canal near Grayson Creek 0 Comment
  JEPS77535  Papaver californicum Margaret Ely 1978-5-3 Contra Costa w of Donner Canyon (toward Twin Peaks from Back Creek, n side of Mount Diablo); Mount Diablo 304 Comment
  RSA721592  Papaver californicum Mary L. Bowerman 1978-5-14 s.n. Contra Costa Mount Diablo. E side of Eagle Peak, old mine wagon trail up Black Canyon. Comment
  SEINET4344382 Image available Parapholis incurva Barbara Ertter, Brad Olson 1994-5-7 12764 Contra Costa S. end Pt. Molate Beach Park W. of Richmond N. of San Rafael Bridge, edge of San Fransisco Bay Comment
  JEPS105696  Parietaria hespera var. californica David Gowen 2004-4-16 31 Contra Costa Black Diamond Mines Regional Preserve. Canyon that heads south of the Nortonville townsite. Comment
  CDA22267  Parietaria judaica D. G. Kelch, A. G. Murdock 2005-5-23 5 .372 Contra Costa Carquinez Strait Region; Crockett - Crolona Heights. 6th Street at Lillian Street, Crockett. Comment
  JEPS79630  Parvisedum pentandrum Edward Lee 1979-5-6 Contra Costa Mount Diablo, Lower Mitchell Canyon Lower Mitchell Canyon; Mount Diablo, Lower Mitchell Canyon Comment
  UC1818967  Paspalum dilatatum Barbara Ertter 1995-9-30 14523 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  UC1818917  Paspalum distichum Barbara Ertter 1995-9-30 14524 Contra Costa North bank of Cerrito Creek at end of Yosemite Avenue in El Cerrito, foot of Albany Hill; stonework bank at edge of overgrown sluggish creek. Comment
  RSA123948  Pedicularis densiflora E. F. Sprague 1957-4-11 1124 Contra Costa Mount Diablo. N slope of Live Oak Canyon. 610 Comment
  RSA123949  Pedicularis densiflora E. F. Sprague 1957-5-30 1134 Contra Costa Rocky Point, Mount Diablo. 610 Comment
  UCSB11198  Pedicularis densiflora Hayes, Judy 1961-3-30 Contra Costa 3 miles N of South Gate of Mount Diablo State Park 670 Comment
  UCD108147  Pediomelum californicum P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM20615  Pediomelum californicum F. W. Peirson 1923-7-1 3618 Contra Costa Contra Costa County: summit of mt Diablo Comment
  POM281783  Pellaea andromedifolia Lyman Benson 1931-3-18 2667 Contra Costa Martinez Comment
  SEINET11713741  Pellaea andromedifolia M. T. Doutt 1930-1 90 Contra Costa Marsh Creek Comment
  JEPS111517  Pellaea mucronata D. G. Kelch 2005-5-13 05 .280 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Ozol rock in chamise chaparral 66 Comment
  UC692120  Pellaea mucronata var. mucronata Mary L. Bowerman 1933-3-25 1774 Contra Costa ridge n of Emmons Canyon; Mt Diablo 335 Comment
  UC2028335  Penstemon centranthifolius Barbara Ertter 1991-5-5 9775 Contra Costa Black Diamond Mines Regional Preserve S of Pittsburg, S side of Rose Hill above Nortonville Pass Comment
  SEINET12320781  Penstemon centranthifolius N. Havlik, Knight, W.; Knight, I. 1980-1 3878 Contra Costa about 1500 ft from Nortonville Pass intersection enroute to Laugher homestead, near old mining town Comment
  UC2070585  Penstemon centranthifolius Barbara Ertter with Steve Matson 2003-3-15 18104 Contra Costa Black Diamond Mines Regional Preserve, SW side of Rose Hill. Comment
  UCD124222  Penstemon heterophyllus P. B. Kennedy 1916-5-21 s.n. Contra Costa Between Diablo and Summit. Comment
  POM14652  Penstemon heterophyllus subsp. purdyi C. F. Baker 1903-4-28 2872 Contra Costa Marsh Creek, Mt. Diablo. Comment
  NY601704  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1921-6-16 9315 Contra Costa Mount Diablo Comment
  UC691510  Penstemon heterophyllus var. heterophyllus Mary L. Bowerman 1935-6-15 3132 Contra Costa Flat (first bottom) where stream forks Mount Diablo, Mitchell Creek, Flat (first bottom) (Mitchell Creek, Mount Diablo) 640 Comment
  UC1050858  Penstemon heterophyllus var. purdyi N. Floy Bracelin 1941-5-18 1319 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  JEPS41053  Pentagramma triangularis subsp. triangularis Rimo Bacigalupi and L. R. Heckard 1965-5-11 9078 Contra Costa sw of Richmond Brooks Isl; San Francisco Bay Comment
  CAS-BOT-BC413499  Persicaria amphibia Walter Knight; I. Knight; J. T. Howell; et al 1978-9-5 3246 Contra Costa Brown's Island. Crooked Slough Comment
  CAS-BOT-BC418832  Persicaria hydropiperoides Brian Atwater 1978-10-24 BA- 165 Contra Costa Between Bethel Island and Holland Tract Comment
  CAS-BOT-BC413778  Persicaria lapathifolia D. E. Breedlove 1969-10-18 16719 Contra Costa Along Alhambra Valley Road near junction with Bear Creek Road, SE of Pinole Comment
  CAS-BOT-BC419326  Persicaria punctata Vincent Jones 1920-8-29 s.n. Contra Costa Orrwood Comment
  UC2062630  Persicaria punctata Barbara Ertter 2005-8-15 18627 Contra Costa East side of Contra Loma Reservoir south Antioch. Comment
  SJSU11250  Phacelia breweri D. C. Bettencourt 1959-4-18 Contra Costa by South Rd to summit of Mt Diablo 609 Comment
  UC162556  Phacelia breweri H. M. Hall 1901-4-5 1748 Contra Costa Mt. Diablo Region of San Francisco Bay 853 Comment
  UC24300  Phacelia breweri Edw. L. Greene 1892-6-20 Contra Costa Mt. Diablo Comment
  UC691688  Phacelia breweri Mary L. Bowerman 1932-4-16 1341 Contra Costa Eagle Point Mount Diablo (n side) 670 Comment
  UC880995  Phacelia breweri Alice Eastwood 1915-5-30 4487 Contra Costa near type locality Mt. Diablo Comment
  UCD13292  Phacelia breweri Collector Unknown 1974-4-13 s.n. Contra Costa Contra Costa CO. Marsh Creek Road, north peak of Mount diablo, near Trail Ride Association. Elevation 2500 - 3000 feet. 914 Comment
  JEPS2225  Phacelia californica W. L. Jepson 1896-5-31 21044 Contra Costa Gum Grove Reservoir to Wild Cat Creek; Berkeley Hills Comment
  RSA42303  Phacelia californica Lincoln Constance 1940-3-16 2524 Contra Costa Margin of San Francisco Bay, Point Richmond. 15 Comment
  SEINET3158089  Phacelia ciliata L. S. Rose 1937-3-26 37013 Contra Costa Brentwood 6 Comment
  UC2022567  Phacelia ciliata Lewis S. Rose 1932-3-15 3281 Contra Costa Byron Comment
  RSA755524  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca. 1/2 mile west of junction of Stewartville Trail and Frederickson Lane. Comment
  UC1950229  Phacelia ciliata Barbara Ertter 1992-3-8 10910 Contra Costa NE edge of Black Diamond Mines Regional Preserve, NE-heading canyon with steep loose sides ca 1/2 mi W of junction of Stewartville Trail and Fredrickson Lane Comment
  JEPS18324  Phacelia ciliata var. ciliata Rimo Bacigalupi with F. Chisaki 1957-3-27 5760 Contra Costa field along Newby rd 0.1 mi nw crossing with Empire Ave. (road) (about 2 mi sw of Oakley) 24 Comment
  UC35531  Phacelia ciliata var. ciliata Chesnut and Drew 1889-4-8 Contra Costa Summerville Comment
  UC24341  Phacelia distans J. Burtt Davy 1895-4-7 917 Contra Costa Antioch Comment
  UC672426  Phacelia distans Herbert L. Mason 1929-3-29 5122 Contra Costa Mount Diablo 762 Comment
  RSA74783  Phacelia distans F. W. Peirson 1923-7-1 5302 Contra Costa Near summit of Mt. Diablo. Comment
  UCD120388  Phacelia distans Robt. Branstead 1934-3-30 s.n. Contra Costa SW slope of Mt. Diablo. 426 Comment
  CAS-BOT-BC6694  Phacelia distans var. australis Charles Fuller Baker 1903-4-28 2806 Contra Costa Antioch Comment
  UC24352  Phacelia divaricata Brewer 1862-5-7 1057 Contra Costa Mt. Diablo Comment
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Sep 7 2009
  UC671741  Phacelia divaricata Lincoln Constance, Donald G. Nelson 1940-4-23 2571 Contra Costa 1 mi n Berkeley; The Arlington Comment
  UC672384  Phacelia imbricata Herbert L. Mason 1928-4-26 4388 Contra Costa slopes to n of Lake Temescal; Berkeley Hills Comment
  RSA170276  Phacelia imbricata subsp. imbricata W. L. Jepson 1918-6-5 7611 Contra Costa North Peak, Mt. Diablo. 945 Comment
  JEPS1082  Phacelia nemoralis subsp. nemoralis Mary L. Bowerman 1933-6-3 2233 Contra Costa Mount Diablo, Ranson Point Trail Mount Diablo; , Ranson Point Trail 1158 Comment
  CAS-BOT-BC154324  Phacelia phacelioides H. L. Mason 1938-5-3 11749 Contra Costa Trail between Juniper Camp and Deer Flat, Mount Diablo Comment
  CAS-BOT-BC154326  Phacelia phacelioides H. M. Hall; F. M. Essig 1916-5-31 10135 Contra Costa Mount Diablo 1140 Comment
  CAS-BOT-BC154338  Phacelia phacelioides L. R. Abrams 1921-5-25 8016 Contra Costa Mt. Diablo on road to summit Comment
  RSA74803  Phacelia phacelioides Mary L. Bowerman 1933-4-26 1923 Contra Costa Mount Diablo, east flank of North Peak 610 Comment
  UC2028313  Phacelia phacelioides Barbara Ertter, Susan D'Alcamo 1998-6-12 16163 Contra Costa North Peak Trail from Devil's Elbow on SE side of Mount Diablo summit. Comment
  JEPS99530  Phacelia rattanii Mary L. Bowerman 1978-5-21 Contra Costa Donner Canyon; ; Mount Diablo, Donner Canyon toward top of loop. Comment
  UC672349  Phacelia tanacetifolia Herbert L. Mason 1929-3-31 5140 Contra Costa hills n Mt. Diablo (Briones Rd) Comment
  UC1101560  Phalaris arundinacea Malcolm A. Nobs 1948-9-23 683 Contra Costa 7 mi s Kingston (Rock Slough); Rock Slough Comment
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Oct 8 2012
  UC2028499  Phalaris coerulescens Barbara Ertter 1999-6-12 16713 Contra Costa Black Hawk Ridge road on south side of Mount Diablo, just south confluence of NE and E forks of Sycamore Creek Comment
  UC1818916  Phalaris paradoxa Barbara Ertter, Robert Stebbins 1996-5-14 14669 Contra Costa Tina Baumgartner site in Tilden Regional Park, North side of Golf Course Rd. east of Grizzly Peak Blvd.; annual grassland on hillside subjected to vegetation conversion. Comment
  UC50464  Phalaris paradoxa Jos. Burtt Davy 1900-6-7 6654 Contra Costa San Pablo Canyon Comment
  JEPS99989  Phlox gracilis G. Smick 2003-3-25 GAS 80 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC30192  Phlox gracilis H. N. Bolander Apr 1866 6398 Contra Costa Monte Diablo Comment
  UC963765  Phlox gracilis Herbert L. Mason 1926-3-7 2703 Contra Costa via Walnut Creek to summit to Danville to Niles Canyon; Mt. Diablo Comment
  CDA22381  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-5-13 5 .235 Contra Costa Carquinez Strait Region; Martinez. South of oil refinery along railroad tracks in fragment of habitat. Comment
  CDA7905  Phoradendron macrophyllum D. G. Kelch, A. G. Murdock 2005-1-16 5 .035 Contra Costa Carquinez Strait; Dutra fire road. Comment
  UC6098  Phoradendron villosum W. C. Blasdale 1891-3-7 Contra Costa San Pablo Creek Comment
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May 25 2011
  UC6099  Phoradendron villosum J. Burtt Davy 1895-4-7 911 Contra Costa Antioch Comment
  UC692038  Phoradendron villosum Mary L. Bowerman 1930-9-9 450 Contra Costa knoll by canyon running past Gabriel Hinks' Comment
  CAS-BOT-BC260891  Phragmites australis J. W. Congdon 1893-7-29 s.n. Contra Costa Martinez Comment
  JEPS87944  Phyla nodiflora var. nodiflora Barbara Ertter, Brad Olson 1991-9-28 10828 Contra Costa at s end of San Pablo Reservoir between Orinda and El Sobrante; San Pablo Reservoir 91 Comment
  UC1789168  Phyllostachys aurea Barbara Ertter 2001-5-26 17652 Contra Costa Stamm Unit of Antioch Dunes National Wildlife Refuge east of Antioch, single well-established clump at base of river bank. Comment
  POM16711  Pickeringia montana var. montana A. D. E. Elmer 1903-05 4315 Contra Costa Mount Diablo Comment
  UC1129854  Pickeringia montana var. montana R. W. Lundh 1932-8-27 149 Contra Costa 1 1/2 mi w Cave Point; Mt. Diablo Quadrangle 487 Comment
  CDA39576  Picrasma quassioides E. Dean, Petra Unger 2005-7-19 2700 Contra Costa Contra Costa Water District land, Byron Tract, just south of Highway 4, along Old River, on east bank. 0 Comment
  CDA15276  Picris echioides G. F. Hrusa, D. Crowe, R. York 1998-7-17 14713 Contra Costa Sacramento Delta; E end of Dow Chemical property. Pittsburg. Comment
  UCD136787  Pilularia americana Roman Gankin 1963-4-12 s.n. Contra Costa On west side of Holey Road, 3 miles southeast of Byron. Comment
  UC691929  Pinus attenuata Mary L. Bowerman 1932-3-20 1121 a Contra Costa toward top of middle ridge (in ne fork of creek); Mount Diablo, Inner Black Hills, Sycamore Creek Comment
  UC692170  Pinus attenuata Mary L. Bowerman 1931-3-1 534 Contra Costa s of summit of ridge (e of meridian); Inner Black Hills Comment
  JEPS47873  Pinus coulteri W. L. Jepson 1931-4-5 15726 Contra Costa low ridges s Nortonville 457 Comment
  RSA32648  Pinus coulteri C. B. Wolf, Allen L. Chickering, H. L. Mason 1943-2-28 11442 Contra Costa 1 mile SW of the old coal mining settlement of Nortonville at the Northern base of Mt. Diablo hills. 305 Comment
  UC1076351  Pinus coulteri Herbert L. Mason 1929-10-8 5480 Contra Costa Nortonville Comment
  CDA32812  Pinus halepensis D. G. Kelch 2010-11-8 10 .445 Contra Costa Carquinez Strait; W Valona (Crockett). Comment
  CAS-BOT-BC72778  Pinus sabiniana Le Roy Abrams 1910-10-8 4350 Contra Costa Mt. Diablo 853 Comment
  JEPS46902  Pinus sabiniana W. L. Jepson 1907-4-26 2649 Contra Costa Mt. Diablo Comment
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Aug 21 2014
  JEPS48206  Pinus sabiniana W. L. Jepson 1931-4-5 15727 Contra Costa Nortonville Comment
  POM300617  Pinus sabiniana Mary L. Bowerman 1933-5-10 2069 Contra Costa One hundred feet below the Muir area. Comment
  UC521715  Pinus sabiniana Joseph Andorfer Ewan 1933-10-15 8039 Contra Costa on grassy open sw slope of Mt. Diablo Mt. Diablo 1066 Comment
  UC691270  Piperia michaelii Mary L. Bowerman 1935-5-16 3004 Contra Costa e side North Peak (above Gabriel-Hinks'); Mount Diablo 289 Comment
  CDA32621  Piptatherum miliaceum A. G. Murdock, D. G. Kelch 2004-6-4 316 Contra Costa Carquinez Strait Region; Martinez - Train Station. Comment
  UC2028244  Pistacia atlantica Barbara Ertter, Tony Morosco 1998-9-18 16418 Contra Costa Lime Ridge Open Space northwest of Mount Diablo, western quarry area. Comment
  UC2032806 Image available Pittosporum crassifolium Doran, Andrew Scott 2012-3-20 676 Contra Costa Brooks island loading dock, North side of island. Comment
  CDA1346  Plagiobothrys D. G. Kelch 1992-3-21 1823 -A Contra Costa 2.5 mi. SE of Byron; along RR tracks, N of junction of Holey Rd. and Byron Hwy. 0 Comment
  JEPS90088  Plagiobothrys acanthocarpus Dean W. Taylor 1992-4-16 12390 Contra Costa s. Byron Hot Springs (in swale draining in e. margins of coordinates); San Joaquin Valley, Clifton Court Forebay 7 1/2 USGS map 45 Comment
  JEPS116911  Plagiobothrys acanthocarpus David Gowen 2009-3-31 977 Contra Costa Black Diamond Regional Preserve. Large open flat east of Lower Oil Canyon Trail. Comment
  RSA666367  Plagiobothrys acanthocarpus Barbara Ertter 1989-4-5 8117 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton 0 Comment
  RSA755523  Plagiobothrys acanthocarpus Barbara Ertter 1992-3-8 10912 Contra Costa Contra Loma Regional Park; vernally wet flat northeast of bend in Frederickson Lane. Comment
  UC1084390  Plagiobothrys bracteatus G. Thomas Robbins 1937-4-25 149 Contra Costa 2 mi e Alamo Comment
  SEINET12343274  Plagiobothrys bracteatus Ottley 1920-4-25 448 Contra Costa entrance to Mitchell Canon, Mt. Diablo 198 Comment
  UC2028186  Plagiobothrys bracteatus Barbara Ertter 1998-5-3 16058 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC101457  Plagiobothrys canescens Katharine Brandegee May 1907 Contra Costa Antioch Station S.P.R.R. Antioch Comment
  UC517994  Plagiobothrys canescens Lewis S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  RSA8341  Plagiobothrys canescens L. S. Rose 1933-3-29 33046 Contra Costa Pittsburg Comment
  CHSC67895  Plagiobothrys humistratus James D. Jokerst 1989-3-29 3066 Contra Costa 0.25 mi S of Byron Hot Springs NE of Livermore. Comment
  JEPS88009  Plagiobothrys leptocladus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8129 Contra Costa ca. 15 air miles s.w. Stockton (w. and adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  SEINET1869807  Plagiobothrys leptocladus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8129 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  SBBG96463  Plagiobothrys nothofulvus W. J. Dress 1951-3-17 3068 Contra Costa eastern slope of Berkeley Hills, just W of Orinda Comment
  UC78202  Plagiobothrys stipitatus Mrs. K. Brandegee May 1892 Contra Costa Brentwood Comment
  POM64765  Plagiobothrys stipitatus C. F. Baker 1903-4-27 2799 Contra Costa Byron. Comment
  RSA6495  Plagiobothrys stipitatus D. D. Keck 1933-4-2 1995 Contra Costa Vasco road, eastern Contra Costa County, N of Vaso School. Comment
  JEPS61072  Plagiobothrys stipitatus var. micranthus E. L. Greene 1889-3-24 Contra Costa Byron Comment
  OBI20600  Plagiobothrys stipitatus var. micranthus Robert F. Hoover 1967-4-28 10513 Contra Costa Byron Hot Springs Comment
  SEINET1906278  Plagiobothrys stipitatus var. micranthus Barbara Ertter, Jim Jokerst and Dave Magney 1989-1 8126 Contra Costa Alkali sink W and adjacent to Clifton Court Forebay, ca 15 air miles SW of Stockton. 0 Comment
  UC573079  Plagiobothrys stipitatus var. micranthus H. L. Mason 1929-3-31 5144 Contra Costa Briones Valley Comment
  JEPS88008  Plagiobothrys stipitatus var. stipitatus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8120 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC573071  Plagiobothrys tenellus H. L. Mason 1932-3-20 6847 Contra Costa Antioch sand hills Comment
  UC1618201  Plagiobothrys trachycarpus Barbara Ertter with Jim Jokerst and Dave Magney 1989-4-5 8117 Contra Costa ca. 15 air mi. s.w. Stockton (w. & adjacent to Clifton Court Forebay); s.e. Contra Costa Co. Comment
  UC191656  Plagiobothrys trachycarpus E. L. Greene 1888-3-28 Contra Costa Byron Springs Comment
  UC2070496  Plagiobothrys trachycarpus Barbara Ertter 2003-3-28 18120 Contra Costa Round Valley Regional Preserve, Fox Trail ca 1/8 mile west of junction with valley trail, low spot in road where water collects. Comment
  CHSC68020  Plantago elongata James D. Jokerst 1989-3-28 3063 Contra Costa NW of jct. Byron Hot Springs Rd. and Armstrong Rd. NE of Livermore. Comment
  JEPS127674  Plantago elongata Barbara Ertter with David Gowen and Michael Park 2017-5-2 22807 Contra Costa West Marsh Creek State Park (former Cowell Ranch) SW of Brentwood, Briones Valley east of Deer Valley Road. Comment
  UC124287  Plantago elongata M. K. Curran May 1883 Contra Costa Antioch Comment
  JEPS111997  Plantago erecta D. G. Kelch 2003-3-21 03 .74 Contra Costa Martinez - West: Ozol Rock and Scenic Drive 40 Comment
  PASA26  Plantago erecta Annetta Carter 1929-3-31 Contra Costa Near Clayton Comment
  UC32534  Plantago erecta J. P. Tracy 1900-3-24 619 Contra Costa Point Richmond San Francisco Bay Region 15 Comment
  JEPS86060  Plantago lanceolata William T. Hirano 1958-4-28 Contra Costa near Inspiration Point (Wildcat Creek Road, San Pablo Ridge e of Berkeley); San Pablo Ridge 304 Comment
  UC691530  Plantago major Mary L. Bowerman 1932-11-11 1642 Contra Costa Lower Moses Rock Spring Mount Diablo Comment
  CAS-BOT-BC91608  Platystemon californicus James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  UC101597  Platystemon californicus Katharine Brandegee 1907-5-5 g Contra Costa between Antioch and Marsh Creek; between Antioch and Marsh Creek Comment
  JEPS100158  Plectritis brachystemon G. Smick 2003-4-3 GAS 119 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  JEPS5147  Plectritis ciliosa subsp. ciliosa Mary L. Bowerman 1933-4-9 1835 Contra Costa Mount Diablo, w fork of Donner Canyon Donner Canyon; Mount Diablo, Donner Canyon 243 Comment
  UC1818900  Plectritis ciliosa subsp. ciliosa Barbara Ertter, Mary Bowerman 1994-6-19 12854 a Contra Costa Mt. Diablo State Park east of Walnut Creek; scrub oak thicket north of road, north of lower summit parking lot, next to drainage on north facing slope. Comment
  JEPS2798 Image available Plectritis ciliosa subsp. insignis J. Burtt Davy 1895-4-7 953 Contra Costa foothills Antioch; Antioch, Contra Costa Co. Comment
  UC2027993  Plectritis macrocera Barbara Ertter with Tony Morosco 1998-4-12 16025 Contra Costa Connector trail on north side of Mount Olympia, north side of Mount Diablo. Comment
  UC416755  Plectritis macrocera Harley P. Chandler 1901-3-22 883 Contra Costa near Fish Ranch Comment
  CDA8487  Pluchea odorata D. G. Kelch, A. G. Murdock 2004-7-9 4 .311 Contra Costa Carquinez Strait Region; Pacheco Marsh. Pacheco Hill Marsh west of Pacheco Slough. Comment
  UC2028092  Pluchea odorata Barbara Ertter, Chris Thayer 1996-10-25 15380 Contra Costa West side of Mount Diablo, North Gate Road 3 roadmiles below Junction, roadside drainage near Mineral Spring. Comment
  JEPS78623  Pluchea odorata var. odorata Walter Knight, L. R. Heckard and Bert Johnson 1978-9-28 3284 Contra Costa Browns Island, Botany Cove Comment
  CHSC21644  Poa annua Willis Ball 1975-3-2 471 Contra Costa Contra Loma Regional Park. In area #1. At w end of main parking lot at s end of lake. 36 Comment
  UC691192  Poa annua Mary L. Bowerman 1933-3-25 1764 Contra Costa off Stone Valley Emmons Canyon; Mt. Diablo Comment
  CAS-BOT-BC246615  Poa howellii Edward Lee 1936-4-19 2007 Contra Costa Northeast slope of the island. Red Rock, San Francisco Bay Comment
  CAS-BOT-BC246643  Poa howellii Mary L. Bowerman 1933-5-22 2167 Contra Costa Mount Diablo. Inner Black Hills: West of 1970 Comment
  CAS-BOT-BC246645  Poa howellii Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-4-11 10622 Contra Costa Curry Canyon, 4.0 miles s. of Recreation Ground Comment
  CAS-BOT-BC236390  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-3 2960 Contra Costa Mount Diablo. Sloan Road 487 Comment
  UC692473  Poa secunda subsp. secunda Mary L. Bowerman 1935-5-3 2960 Contra Costa Sloan Rd; Mt Diablo 487 Comment
  UC790973  Poa secunda subsp. secunda A. A. Beetle 1941-3-23 1713 Contra Costa 1 mi e St Mary's College 182 Comment
  CAS-BOT-BC236387  Poa secunda subsp. secunda Mary L. Bowerman 1935-4-19 2859 Contra Costa Mount Diablo. Near Turtle Rock, hillside on opposite side of the road 457 Comment
  SEINET13947037 Image available Pogogyne Joseph Andorfer Ewan 1936-1 9694 Contra Costa W slope of Bald Peak, San Pablo Ridge Comment
  UC306575  Pogogyne douglasii A. D. E. Elmer May 1903 4320 Contra Costa Walnut Creek Comment
  POM193972  Pogogyne serpylloides J. T. Howell 1930-4-22 4747 Contra Costa Bald Peak Comment
  UC691475  Pogogyne serpylloides Mary L. Bowerman 1931-4-11 696 Contra Costa Mount Diablo, Pine Canyon floor Comment
  JEPS65184  Pogogyne zizyphoroides L. R. Heckard 1971-4-15 2483 Contra Costa At intersection of Holey Road, South of Byron. Comment
  JEPS76288  Polygonum amphibium var. emersum W. L. Jepson 1944-7-23 27538 Contra Costa w side of valley near Moraga Pass; Moraga Valley Comment
  UC1784185  Polygonum amphibium var. emersum Ethel Crum 1930-9-29 863 Contra Costa Marsh Creek Road to Holt Comment
  CDA37404  Polygonum argyrocoleon D. G. Kelch, Mike Perlmutter 2011-9-23 11 .759 Contra Costa Entry to Discovery Bay. Comment
  CHSC97872  Polygonum aviculare subsp. buxiforme D. G. Kelch 2006-7-14 06 .328B Contra Costa Along Marine Vista Ave immediately west of Pacheco Slough. East of Martinez. 1 Comment
  JEPS112027  Polygonum aviculare subsp. depressum Dean G. Kelch and Andrew G. Murdock 2004-7-9 DGK 04 .290Z Contra Costa Edwards Creek Crockett CA. Comment
  CDA1502  Polygonum ramosissimum var. ramosissimum D. G. Kelch 1996-10-17 s.n. Contra Costa Carquinez Strait; Pt Edith Marsh Comment
  UC42882  Polypodium E. L. Greene 1892-3-20 Contra Costa Red Rock; Bay of San Francisco Comment
  JEPS112031  Polypodium calirhiza A. G. Murdock 2003-2-21 71 Contra Costa Mt. Wanda - Martinez Edge of oak woodland on top of north-facing hill above train tunnel on Mt. Wanda 90 Comment
  JEPS79503  Polypodium calirhiza Edward Lee with C. Belshaw 1935-12-28 1706 Contra Costa Las Trampas Ridge Las Trampas Peak 441 Comment
  UC1222107  Polypodium calirhiza Joseph Andorfer Ewan 1934-3-10 8657 Contra Costa 1/2 mi below Orinda rd. bridge; Wildcat Canyon Comment
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Aug 23 2009
  UC2032825  Polypodium calirhiza Doran, Andrew Scott 2012-3-20 695 Contra Costa North end of Brooks Island along ridge overlooking artificial spit, southwest of caretakers residence. Comment
  RSA760664  Polypodium calirhiza William J. Ferlatte, L. Maynard Moe 1970-4-27 1235 Contra Costa San Francisco Bay, Red Rock Island. Comment
  CAS-BOT-BC233018  Polypogon interruptus Mary L. Bowerman 1931-4-4 656 Contra Costa Mount Diablo. West Road 4.5 miles from entrance Comment
  CHSC60218  Polypogon monspeliensis J. Lund 1980-4-2 Contra Costa 3.0 miles west of the junction of East 10th and Clayton Valley Road in Pottsburg. 0 Comment
  RSA484484  Polypogon monspeliensis A. A. Beetle 1941-6-24 s.n. Contra Costa Point Richmond on San Francisco Bay. Comment
  UC2028386  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap Comment
  RSA0026148  Polypogon viridis Barbara Ertter 1998-6-20 16256 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, wet margin of Willow Spring Pond south of Ginder Gap. Comment
  JEPS102910  Polystichum Barbara Ertter with Susan D'Alcamo 1998-6-12 16194 Contra Costa E end of Bald Ridge Tail W of Prospectors Gap Mount Diablo Comment
  RSA760663  Polystichum munitum William J. Ferlatte, L. Maynard Moe 1970-4-27 1244 Contra Costa San Francisco Bay, Red Rock Island. Comment
  UC406993  Populus fremontii subsp. fremontii Ira L. Wiggins 1930-4-18 4602 Contra Costa se side Jersey Island (Levee bank); se side of Jersey Island Comment
  CDA33072  Potamogeton crispus D. G. Kelch 2010-10-5 10 .427 Contra Costa The Delta.; Antioch shoreline. West of Fulton shipyard. Comment
  JEPS111056  Potamogeton foliosus var. foliosus Barbara Ertter 2005-8-17 18617 Contra Costa N base of Mount Diablo S of Clayton, small permanent pond NE of Mitchell Canyon parking lot Comment
  SEINET11268163  Potamogeton pectinatus Barbara Ertter 1998-6-20 16254 Contra Costa NW side of Mount Diablo, Willow Spring Pond south of Ginder Gap.; 0 Comment
  UCSC000363  Potentilla rivalis var. millegrana I. J. Condit 2008-8-19 s.n. Contra Costa Antioch Comment
  CDA32038  Prunus angustifolia D. G. Kelch 2006-3-18 6 .107 Contra Costa 2 km N-NW of Orinda Village. NW of corner of San Pablo Dam Rd & Bear Valley Rd. 0 Comment
  CAS-BOT-BC154629  Prunus subcordata K. C. 1883-5-1 s.n. Contra Costa Mt. Diablo Comment
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Mar 21 2019
  UC2027928  Prunus virginiana var. demissa Barbara Ertter with John Ginochio and Mary Bowerman 2001-5-8 17633 Contra Costa Northwest flank of Mount Diablo, headwaters of Arroyo del Cerro between Olofson Ridge and Long Ridge. Comment
  JEPS111725  Pseudognaphalium beneolens D. G. Kelch 2004-7-9 04 .304 Contra Costa Martinez - West: Ozol Rock and Scenic Drive; Martinez along Alhambra Drive 3 Comment
  JEPS111736  Pseudognaphalium beneolens D. G. Kelch 2004-9-2 04 .345 Contra Costa Martinez - West: Ozol Rock and Scenic Drive Steep road-cut. Alhambra Road. South of Green St. 3 Comment
  JEPS111723  Pseudognaphalium californicum D. G. Kelch 2004-7-9 04 .295 Contra Costa Crockett - Carquinez Scenic Drive Carq. Scenic Dr. East of Crockett West of Bull Valley SA 60 Comment
  CAS-BOT-BC356654  Pseudognaphalium californicum Louise Dutton 1976-7-16 s.n. Contra Costa 18 Bobolink Road, Orinda 182 Comment
  UC2032810  Pseudognaphalium luteoalbum Doran, Andrew Scott 2012-3-20 680 Contra Costa Brooks island loading dock, North side of island. Comment
  CAS-BOT-BC356972  Pseudognaphalium luteoalbum Walter Knight 1977-7-20 s.n. Contra Costa East Bay Regional Park District. On Briones Ridge at about 1,000 ft elev. Briones Regional Park 304 Comment
  CAS-BOT-BC356973  Pseudognaphalium luteoalbum John Thomas Howell; Gordon H. True 1972-6-29 48934 Contra Costa On Byron Hot Springs Road southeast of Byron Comment
  UC1618173  Pseudognaphalium ramosissimum Barbara Ertter, CNPS 1990-8-19 9621 Contra Costa along Bear Creek Trail n Orinda (e side of s end of reservoir, on EBMUD land, near Briones Overlook); Briones Reservoir 213 Comment
  JEPS111533  Pseudognaphalium stramineum D. G. Kelch 2005-5-5 05 .217 Contra Costa Point Pinole - Giant Marsh Giant Salt Marsh 3 Comment
  UC691826  Pseudognaphalium stramineum Mary L. Bowerman 1938-9-17 3717 Contra Costa Johnny Walker Spring Mount Diablo, Johnny Walker Spring 731 Comment
  CAS-BOT-BC357592  Pseudognaphalium stramineum John Thomas Howell 1925-11-7 1556 Contra Costa San Leandro Canyon, Oakland Hills Comment
  CAS-BOT-BC357593  Pseudognaphalium stramineum Walter Knight; Joanne Dean 1978-8-14 3135 Contra Costa Browns Island Comment
  UC1948940  Pseudognaphalium thermale William J. Ferlatte, L. Maynard Moe 1970-4-27 1257 Contra Costa San Francisco Bay: Red Rock Island Comment
  JEPS40518  Psilocarphus tenellus W. L. Jepson 1922-5-11 9635 Contra Costa n Berkeley Hills; North Berkeley Hills Comment
  UC691818  Psilocarphus tenellus Mary L. Bowerman 1931-4-11 702 Contra Costa Mouth of Pine Canyon Mount Diablo Comment
  POM138613  Ptelea baldwinii subsp. crenulata C. F. Baker 1903-4-28 2943 Contra Costa Mitchell's Canyon, Mt. Diablo. Comment
  CAS-BOT-BC148628  Ptelea crenulata Alice Eastwood 1915-5-30 4489 Contra Costa Mount Diablo Comment
  CAS-BOT-BC148636  Ptelea crenulata W. W. Carruth 1903-5-10 s.n. Contra Costa Mitchell Canyon, Mt. Diablo Comment
  CAS-BOT-BC148641  Ptelea crenulata H. E. McMinn 1922-10-1 409 Contra Costa Mitchell Canyon, Mt. Diablo Comment
  UC1602321  Ptelea crenulata R. W. Lundh 1932-9-3 156 Contra Costa 1 mi n Mt. Diablo, North Peak; Mt. Diablo Quad. 609 Comment
  UC17376  Ptelea crenulata J. Burtt Davy 1895-4-7 909 Contra Costa Antioch Comment
  UC17380  Ptelea crenulata W. H. Brewer 1862-5-7 1052 Contra Costa n slope Mount Diablo 30 Comment
  UC583288  Ptelea crenulata Alice Eastwood and John Thomas Howell 1936-4-19 2134 Contra Costa Nortonville Comment
  UC692585  Ptelea crenulata Mary L. Bowerman 1935-6-1 3099 Contra Costa gully e Mitchell-Pine divide; Mount Diablo 975 Comment
  UC868043  Ptelea crenulata Lewis S. Rose 1940-4-30 40249 Contra Costa 6 mi e Clayton; Marsh Creek 45 Comment
  UC909620  Ptelea crenulata Kay H. Beach 1941-4-30 1080 Contra Costa about 7 mi w Byron (n bank along Marsh Creek); Marsh Creek 30 Comment
  UCD116921  Ptelea crenulata P. B. Kennedy 1929-4-25 s.n. Contra Costa Marsh Creek Road. Comment
  JEPS112010  Pterostegia drymarioides Dean G. Kelch and Andrew G. Murdock 2003-4-3 DGK 03 .360 Contra Costa Cummings Skyway. Comment
  UC1795763  Pterostegia drymarioides Barbara Ertter, Lisa Schultheis 1995-4-27 14014 Contra Costa Lime Ridge open space northwest of Mt. Diablo in Walnut Creek; north-facing open brushy slope with scattered oaks along extension of Valley View road. 182 Comment
  RSA0031298  Puccinellia nuttalliana Barbara Ertter, Brad Olson 2000-6-2 17301 Contra Costa Brushy Peak Regional Preserve NE of Livermore, at south base of Brushy Peak. Comment
  UC2027946  Pyrus communis Barbara Ertter 1997-9-7 15793 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  UC2027947  Pyrus communis Barbara Ertter 1997-9-7 15792 Contra Costa North side Mount Diablo, cabin site on Donner Creek, in persisting orchard. Comment
  JEPS95248  Quercus Steve Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  CAS-BOT-BC104167  Quercus X morehus Mary L. Bowerman 1935-10-26 3349 Contra Costa Mount Diablo. 0.1 mile by road above Silver Spring, 50 feet from road 859 Comment
  CAS-BOT-BC45657  Quercus agrifolia John Thomas Howell 1926-12-27 2274 Contra Costa Near Oakley Comment
  CAS-BOT-BC45661  Quercus agrifolia Mary L. Bowerman 1933-4-22 1905 Contra Costa Curry-Cave Point trail: By water-trough, Mount Diablo 457 Comment
  CHSC24131  Quercus agrifolia M. A. Callahan 1976-4-11 1 Contra Costa 45 ft. nnw of house at 1976 Mohawk Dr., Pleasant Hill. Growing on steep hillside; w side Oak Wd. 121 Comment
  UC1748013  Quercus agrifolia E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-13 652 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., S of jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante (overlooking city of El Sobrante) 213 Comment
  UC691304  Quercus berberidifolia Mary L. Bowerman 1934-2-3 2479 Contra Costa head of e fork of Sycamore Canyon, knob w of knoll Mount Diablo, Sycamore Canyon Comment
  RSA0041717  Quercus berberidifolia Mary L. Bowerman 1930-10-19 490 Contra Costa South road at Garden-of-the-Gods (Fossil Ridge). Comment
  UC691275  Quercus chrysolepis Mary L. Bowerman 1930-10-25 496 Contra Costa Sloan Road Mount Diablo Comment
  CAS-BOT-BC86648  Quercus douglasii John Thomas Howell 1926-3-7 1658 Contra Costa Mt. Diablo near toll gate Comment
  UC521666  Quercus douglasii Joseph Andorfer Ewan 1933-10-15 8028 Contra Costa Mt. Diablo 1066 Comment
  UCD45689  Quercus douglasii G. L. Stebbins, jr. 1945-10-14 3590 Contra Costa Northeast side of Mt. Diablo. Beside barn on road to old quicksilver mine. Comment
  UCD57122  Quercus douglasii J. M. Tucker 1946-5-8 s.n. Contra Costa Mt. Diablo, along main road, above main gate. Comment
  CAS-BOT-BC86120  Quercus dumosa Mary L. Bowerman 1933-4-15 1878 Contra Costa Mount Diablo. Canyon S of Arroyo del Cerro: Canyon side Comment
  CAS-BOT-BC79606  Quercus durata Mary L. Bowerman 1932-10-16 1632 Contra Costa Mount Diablo. Donner Canyon Trail Comment
  UC691323  Quercus durata Mary L. Bowerman 1931-5-19 869 Contra Costa Donner Canyon trail Mount Diablo 274 Comment
  CHSC83198  Quercus garryana B. Ertter; M. Bowerman, E. Dean, J. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Mount Diablo State park, Fossil Ridge, just upslope of South Gate Rd., just west of Gibraltar Rock, southeast of Rock City. 487 Comment
  SBBG115591  Quercus garryana E. Dean, M. Bowerman, B. Ertter, J. M. Tucker, J. Kerbavaz 2000-9-13 654 Contra Costa Mt Diablo St Park, Fossil Ridge, just upslope of S Gate Rd, just W of Gibraltar Rock, SE of Rock City 487 Comment
  UCD17435  Quercus garryana E. Dean; M. Bowerman, B. Ertter, J. Tucker, J. Kerbavaz 2000-9-13 657 Contra Costa California. Contra Costa County: Mount Diablo State park, Fossil Ridge, along fire road that begins at the parking lot southeast of Rock City and climbs onto Fossil Ridge in southeasterly direction, ca. 0.1 mile from Rock City, slightly downslope of road. 487 Comment
  JEPS38080  Quercus kelloggii Frank W. Bancroft 1923-3-25 Contra Costa Pine Canyon Mt. Diablo Comment
  UC639150  Quercus kelloggii Annetta Carter 1939-11-18 Contra Costa between Orinda andf Moraga Comment
  UCSB11595  Quercus kelloggii N. Grah 1962-4-14 110 Contra Costa 1.1 MI N OF TARRY LANE ON TAPPAN LANE ORINDA 243 Comment
  OBI22995  Quercus kelloggii Cathy Peterson 1971-11-6 8 Contra Costa Mount Diablo, south side, approx 35 yds from Rock City entrance 610 Comment
  JEPS75531  Quercus lobata P. F. Yorks 1976-8-5 512 Contra Costa n of Briones (2.4 km s of Bear Creek Road on Hampton Road in Hampton Road Natural Reserve) 200 Comment
  UC2028571  Quercus palmeri Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15519 Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UCD81370  Quercus palmeri J. M. Tucker 1981-4-25 4453 -E Contra Costa Antonio Souza Ranch southwest of Byron. Mt. Diablo Meridian. 309 Comment
  UC2070466  Quercus parvula var. shrevei Barbara Ertter 2000-9-2 17523 Contra Costa Sobrante Ridge Preserve in hills southeast of El Sobrante, Manzanita Trail near Heavenly Ridge Trail junction. Comment
  JEPS104763  Quercus wislizeni John L. Morrison 1937-3-6 1973 Contra Costa S of Antioch Comment
  UC1135852  Quercus wislizeni R. C. Wilson 1935-3-13 127 Contra Costa 1.5 mi w Cave Pt.; Mt. Diablo Quad. 563 Comment
  UC1748014  Quercus wislizeni E. Dean with B. Ertter, J. M. Tucker, K. Chaney 2000-9-10 651 Contra Costa El Sobrante Ridge, upslope of the terminus of Heavenly Ridge Rd., jct of Heavenly Ridge Trail and Manzanita Trail El Sobrante 213 Comment
  UC691294  Quercus wislizeni Mary L. Bowerman 1932-1-30 1079 Contra Costa Inner Black Hills, head of ne fork (nw corner of the basin) Mount Diablo 670 Comment
  CAS-BOT-BC104718  Quercus wislizeni D. C. Barclay 1919-5-10 s.n. Contra Costa from the hill above Redwood Inn, Moraga Valley Comment
  SEINET13954084 Image available Quercus wislizeni Peter H. Raven 1950-1 1355 Contra Costa Muraga Ridge 305 Comment
  JEPS96257  Quercus wislizeni var. frutescens Dean Kelch 1995-3-14 97 .13 Contra Costa Mount Diablo, Rock City, e Contra Costa County Rock City; Mount Diablo, Rock City 457 Comment
  UC691456  Rafinesquia californica Mary L. Bowerman 1932-5-6 1419 Contra Costa Mitchell Canyon Floor Mount Diablo, Mitchell Canyon Floor 213 Comment
  UC1606299  Ranunculus aquatilis var. capillaceus Barbara Ertter with Lynne Hosley and Sid Cowles 1992-6-7 11085 Contra Costa pond in quarry e Round Top; Oakland Hills, Sibley Volcanic Regional Preserve Comment
  CHSC24922  Ranunculus californicus M. A. Callahan 1976-4-11 8 Contra Costa Ca. 70 m e of house at 1976 Mohawk Dr. Pleasant Hill, at base of canyon. 129 Comment
  JEPS99974  Ranunculus californicus S. O'Neil 2003-2-18 SEO 3 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM268432  Ranunculus californicus Lyman Benson 1935-3-16 6271 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC1300986  Ranunculus californicus Helen K. Sharsmith 1962-3-25 4912 Contra Costa hills between Happy Valley and Alhambra Valley; San Francisco Bay Region 304 Comment
  UC400155  Ranunculus californicus Ynes Mexia 1929-4-21 2377 Contra Costa Moraga Valley Comment
  UCD84954  Ranunculus californicus Chuck Hughes 2010-4-1 226 Contra Costa About 0.6 mile east of Los Vaqueros Road. 305 Comment
  UCD35997  Ranunculus californicus Beecher Crampton 1949-4-21 427 Contra Costa Contra Costa County, city of Richmond, in vacant lot near Santa Fe Railroad, S. 14th Street. 7 Comment
  UCSB39437  Ranunculus californicus Fritzke, Sue 1980-3-1 Contra Costa Hills behind Walnut Heights Elementary School, off of Walnut Blvd 1 mile east of intersection with Walker Rd. 124 Comment
  RSA0068489  Ranunculus californicus var. californicus Katie Gallagher, Nick Jensen 2014-4-26 185 Contra Costa Las Trampas Regional Wilderness. 396 Comment
  POM268398  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  POM268399  Ranunculus canus Lyman Benson 1931-3-18 2655 Contra Costa Mt. Diablo near Danville; Mt. Range: Mt. Diablo; Watershed: Walnut Creek 152 Comment
  POM268457A  Ranunculus canus Mary L. Bowerman 1931-3-21 587 Contra Costa Sycamore Canyon: semi shady grassy spot, alt 1100ft. Contra Costa County 335 Comment
  UC118266  Ranunculus canus var. canus T. S. Brandegee May 1889 Contra Costa Antioch Comment
  UC135556  Ranunculus canus var. canus Edward Lee Greene April, 1887 Contra Costa Antioch Comment
  UC480976  Ranunculus canus var. canus Katharine Brandegee 1907-5-4 Contra Costa near Antioch; Judsonville Comment
  UC1607964  Ranunculus hebecarpus Donald G. Nelson 1937-4-29 507 Contra Costa Road from Pinole south towards Alhambra Road Pinole Comment
  UC692125  Ranunculus hebecarpus Mary L. Bowerman 1932-3-23 1130 Contra Costa ridge e Donner Canyon (at saddle); Mount Diablo 274 Comment
  UC9444  Ranunculus hebecarpus H. N. Bolander 1866-1 Contra Costa Monte Diablo Comment
  POM269205  Ranunculus hebecarpus H. L. Mason 1929-3-29 5126 Contra Costa Marsh Creek Road, 2 miles above Clayton Comment
  SEINET3816544 Image available Ranunculus hebecarpus Lewis S. Rose 1934-3-21 34071 Contra Costa Marsh Creek, 6 miles east of Clayton. Comment
  UC2043025  Ranunculus lobbii Barbara Ertter with David Gowen 2006-3-1 18665 Contra Costa Upper San Leandro Reservoir Watershed (EBMUD) south Moraga, shallow small pond along SE end of Rocky Ridge Road as it drops to King Canyon Road. Comment
  JEPS112057  Ranunculus muricatus D. G. Kelch 2004-4-24 04 .96 Contra Costa Ca ada del Cierbo Upper Ca ada de Cierbo on fire road to cow barn along Cummings Skyway 70 Comment
  UC61031  Ranunculus orthorhynchus var. bloomeri N. L. Gardner 1904-2-17 Contra Costa Happy Valley Comment
  JEPS107131  Ranunculus sceleratus Barbara Ertter, Kristin Ertter 1995-7-11 14485 Contra Costa West side of Mt Diablo SW of Walnut Creek; mudflat around inlet to Pine Pond. Comment
  RSA721368  Ranunculus sceleratus Barbara J. Ertter 1995-7-11 14485 Contra Costa W side of Mt. Diablo SW of Walnut Creek, dense growth at lower end of Pine Pond. 183 Comment
  CHSC116607  Raphanus raphanistrum Lowell Ahart; Josephine Guardino 2016-4-19 20772 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. 1.4 miles northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. 144 Comment
  JEPS127092  Raphanus raphanistrum Lowell Ahart, Josephine Guardino 2016-4-19 20772 Contra Costa 1.4 miles (air) northwest of Los Vaqueros Reservoir Marina, 1.9 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  JEPS112063  Reseda alba D. G. Kelch 2004-4-11 04 .76 Contra Costa Crockett - Crolona Heights Hillside above Rolf Drive. Lower Crolona heights. 15 Comment
  CDA29170  Rhamnus alaternus D. G. Kelch 2008-6-1 8 .219 Contra Costa Carquinez Strait; Rodeo Shore. Comment
  JEPS112065  Rhamnus crocea A. G. Murdock 2004-5-28 290 Contra Costa Pinole Peak 405 Comment
  HSC101957  Rhamnus ilicifolia Nikolaus Gillen, Michelle Bihler 2014-3-20 9 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  UC1121873  Rhamnus ilicifolia R. W. Lundh 1932-8-15 127 Contra Costa 1 mi w Round Valley; Mt. Diablo Quad. 228 Comment
  UC692597  Rhamnus tomentella subsp. tomentella Mary L. Bowerman 1933-9-3 2419 Contra Costa s of Meridian-North Peak saddle; Mount Diablo Comment
  UC1479602  Rhaponticum repens Ken Stevens 1980-6-1 Contra Costa 1/4 mi w of, along hwy 4 Discovery Bay Comment
  RSA128347  Ribes californicum Peter H. Raven 1950-3-5 1408 Contra Costa Happy Valley Road, 2.8 miles above intersection with Upper Happy Valley road. 244 Comment
  SBBG28501  Ribes californicum E. Mulliken 1905-1-28 Contra Costa Wildcat Cyn, Berkeley Hills Comment
  JEPS111987  Ribes menziesii D. G. Kelch 2005-3-25 05 .80 Contra Costa Fernandez Ranch Fernandez Ranch. West of Christie Road. South of I-4 (behind golf course) and North of Pinole Peak. 150 Comment
  SEINET14419467 Image available Ribes menziesii J. Arrigo 1975-3-6 10 Contra Costa Along Marsh Creek Road near Mt. Diablo area. 183 Comment
  UC1127450  Ribes menziesii R. W. Lundh 1932-9-22 166 Contra Costa Mount Diablo Mt. Diablo Quadrangle Comment
  CAS-BOT-BC206017  Ribes menziesii John Thomas Howell 1980-4-10 53367 Contra Costa Morgan Territory east of Mt. Diablo Comment
  JEPS77001  Ribes sanguineum var. glutinosum Robert M. Lloyd 1963-3-17 2132 Contra Costa 0.5 mi e Grizzly Peak Road (on Skyline Drive (across from 7090 Skyline Drive), Huckleberry trail); Huckleberry trail Comment
  UCSB26492  Ribes sanguineum var. glutinosum Keefe, Joseph 1967-3-20 Contra Costa along Huckleberry Trail; 0.5 mile east of Skyline boulevard; near intersection with Grizzly Park Boulevard; east of Berkeley 274 Comment
  CAS-BOT-BC362961  Rigiopappus leptocladus Mary L. Bowerman 1933-5-10 2061 Contra Costa Mount Diablo. Ridge at east end of, and south of, Meridian Flat 822 Comment
  CDA30988  Rigiopappus leptocladus D. G. Kelch, Abigail Moore 2010-4-7 10 .096 Contra Costa Mt. Diablo. Upper Mitchell Canyon. Comment
Read comments
May 4 2013
  UC697151  Rigiopappus leptocladus Mary L. Bowerman 1931-4-4 669 Contra Costa w Turtle Rock; Mount Diablo Comment
  POM301016  Rigiopappus leptocladus Mary L. Bowerman 1935-4-22 2890 Contra Costa Ridge west of Pioneer Road (west of Old Stage Road). 854 Comment
  RSA72859  Rigiopappus leptocladus A. Kellogg, W. G. W. Harford 1869-6-6 524 Contra Costa Summerville, Mt. Diablo. Comment
  UC1050661  Rondeletia amoena N. Floy Bracelin 1941-4-17 1179 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  CAS-BOT-BC74445  Rorippa curvisiliqua J. Bauer 1851-5-1 187 Contra Costa Ad mond Diablo [At Mount Diablo]. Comment
  CAS-BOT-BC147409  Rosa californica Walter Knight; Joanne Dean 1978-8-14 3180 Contra Costa Browns Island Comment
  CAS-BOT-BC147412  Rosa californica C. Keefer 1922-9-25 s.n. Contra Costa [Morago] Moraga Ridge Comment
  JEPS116787  Rosa spithamea David Gowen 2006-6-14 613 Contra Costa Morgan Territory Regional Park; At the NW end of Eagle Trail. Comment
  POM300600  Rubus parviflorus Mary L. Bowerman 1933-5-19 2140 Contra Costa Below Morgan Sulphur Spring. 335 Comment
  CAS-BOT-BC156577  Rubus ulmifolius Walter Knight; Joanne Dean 1978-8-14 3164 Contra Costa Browns Island Comment
  JEPS112073  Rubus ulmifolius var. inermis A. G. Murdock 2004-5-28 307 Contra Costa Luzon 60 Comment
  JEPS66120  Rubus ulmifolius var. inermis Pat Watters 1971-6-9 Contra Costa vacant lot at Ferry and Green Streets Martinez Comment
  UC691123  Rubus ursinus Mary L. Bowerman 1931-10-13 1059 Contra Costa e fork Alamo Canyon Mount Diablo, Alamo Canyon, e fork Comment
  UC2029020  Rumex californicus Barbara Ertter 1999-7-17 16766 Contra Costa Wildcat Canyon Regional Park in East Bay Hills, Wildcat Creek Trail between Rifle Range Road and boundary with Tilden Regional Park. Comment
  CAS-BOT-BC421737  Rumex conglomeratus Irja Knight; W. Knight 1977-5-22 s.n. Contra Costa Antioch Dunes. Comment
  RSA762304  Rumex transitorius William J. Ferlatte, L. M. Moe 1970-4-27 1216 Contra Costa San Francisco Bay, Red Rock Island. Comment
  OBI78191  Rupertia physodes Joseph Andorfer Ewan 1934-4-8 8752 Contra Costa S Fk. Marsh Creek, Mt. Diablo 244 Comment
  CDA35214  Ruta chalepensis F. Brucato & G. Sorensen 1964-5-6 s.n. Contra Costa Brentwood, Deer Valley Road. 0 Comment
  UC2028200  Sagina apetala Barbara Ertter 1998-5-3 16052 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  SEINET11268191  Salicornia europaea Barbara Ertter 1990-9-30 9656 Contra Costa Point Pinole Regional Shoreline, edge of sparina marsh at edge of salicornia marsh on SW corner of park; edge of San Pablo Bay.; 0 Comment
  POM164904  Salicornia virginica Katherine Brandegee s.n. Contra Costa Byron Hot Springs. Comment
  CAS-BOT-BC129908  Salix bonplandiana Alice Eastwood 1914-3-6 s.n. Contra Costa Concord Comment
  CAS-BOT-BC129922  Salix bonplandiana Barrett Anderson 1987-4-30 3488 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD. 125 Comment
  POM300631  Salix exigua Mary L. Bowerman 1935-5-30 3081 Contra Costa Mt. Diablo. By Donner Canyon stream. 152 Comment
  UC691921  Salix exigua var. hindsiana Mary L. Bowerman 1935-5-30 3081 Contra Costa by Donner Canyon stream Donner Canyon; Mt. Diablo 152 Comment
  JEPS112253  Salix laevigata D. G. Kelch 2005-3-11 05 .038 Contra Costa Martinez - Franklin Hills; Carquinez Shoreline EBRP. West of Martinez High School. Comment
  JEPS112255  Salix laevigata D. G. Kelch 2005-5-13 05 .244 Contra Costa Martinez South of oil refinery along Railroad tracks Comment
  POM167590  Salix laevigata H. M. Hall 1901-3-22 s.n. Contra Costa Pacheco. Comment
  POM181440  Salix laevigata I. L. Wiggins 1930-4-18 4601 Contra Costa Jersey Island. Comment
  UC437380  Salix laevigata J. Burtt Davy 1895-4-13 1005 Contra Costa near Lafayette Comment
  UC650582  Salix laevigata Ira L. Wiggins 1930-4-18 4601 Contra Costa levee banks Jersey Island Comment
  CAS-BOT-BC125142  Salix lasiandra var. lasiandra W. W. Mott 1905-3-11 s.n. Contra Costa unspecified Comment
  CDA33974  Salix lasiolepis D. G. Kelch 2011-3-31 11 .08 Contra Costa Carquinez Region; Richmond; Hilltop Lake Park. Comment
  UC692055  Salix lasiolepis Mary L. Bowerman 1932-8-27 1520 Contra Costa spring s Turtle Rock; Mount Diablo Comment
  UC692062  Salix lasiolepis Mary L. Bowerman 1933-2-23 1721 Contra Costa Donner Canyon Mount Diablo (w fork toward mouth, by streambed) Comment
  CAS-BOT-BC129560  Salix lasiolepis var. lasiolepis Alice Eastwood 1914-3-6 s.n. Contra Costa Redwood Canyon Comment
  JEPS95226  Salix scouleriana Stephen W. Edwards 1995-10-20 Contra Costa Round Top, W flank Robert Sibley Volcanic Regional Preserve Comment
  JEPS79009  Salsola tragus Edward Lee with Annetta Carter 1935-8-17 1618 Contra Costa just e. Antioch Comment
  UC41510  Salsola tragus L. L. Guss 1900-6-1 Contra Costa Antioch Comment
  UCD102380  Salvia columbariae Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-24 s.n. Contra Costa Mount Diablo State Park. Devils Elbow-Devils Pulpit. 1050 Comment
  CAS-BOT-BC233289  Salvia mellifera D. E. Breedlove 1970-4-18 17448 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  JEPS49757  Salvia mellifera Rimo Bacigalupi and Alice Howard and Paul Hutchison 1967-3-29 9219 Contra Costa 0.5 mi se head of Bolinger Creek (on w slope of Las Trampas Ridge, in Bolinger Creek drainage); Las Trampas Ridge, Bolinger Creek 390 Comment
  JEPS89167  Salvia mellifera W. L. Jepson 1898-10-18 Contra Costa Mt. Diablo Comment
  POM283364  Salvia mellifera Lyman Benson 1935-3-16 6260 Contra Costa Mt. Diablo, Watershed: Walnut Creek; Mountain Range: Mt. Diablo. 915 Comment
  UC691515  Salvia mellifera Mary L. Bowerman 1932-3-6 1104 Contra Costa mouth of Sycamore Canyon; Mount Diablo Comment
  UCD125593  Salvia mellifera P. B. Kennedy 1925-4-26 s.n. Contra Costa Mt. Diablo. Road to Sycamore Canon. Comment
  JEPS100122  Sambucus mexicana G. Smick 2003-4-29 GAS 150 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  CAS-BOT-BC238631  Sambucus nigra subsp. caerulea Alice Eastwood 1921-4-18 10281 Contra Costa Antioch Comment
  OBI70557  Sanicula bipinnata D. G. Kelch 2007-3-24 7 .088 Contra Costa Ozol; between Port Costa and Martinez, near old brick quarry Comment
  UCR66591  Sanicula bipinnata L. S. Rose 1934-3-21 34063 Contra Costa 3-6 mi east of Clayton Comment
  SEINET13945126 Image available Sanicula bipinnata Lewis S. Rose 1934-1 34063 Contra Costa 3 mi. E. of Clayton Comment
  JEPS100130  Sanicula crassicaulis G. Smick 2003-3-3 GAS 62 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC1555367  Sanicula crassicaulis Jerry Powell 1988-4-8 1527 Contra Costa west Richmond, Point Molate Point Molate; Richmond, Point Molate Comment
  RSA0027881  Sanicula crassicaulis Barbara Ertter, Holly C. Forbes 1997-4-20 15563 Contra Costa North base of Mount Diablo, Eagle Peak Trail on NE side of Eagle Ridge below Twin Peaks. Comment
  PASA1824  Sanicula menziesii Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  JEPS979  Sanicula saxatilis W. L. Jepson 1921-5-22 9207 Contra Costa Mount Diablo 1170 Comment
  LA33017  Sanicula saxatilis Lincoln Constance; T. Morley, Ren Hwa. Shan, W. H. Wagner 1946-4-26 3036 Topotype Contra Costa Mount Diablo, summit SW of lookout 1158 Comment
  SD211529  Sanicula saxatilis Barbara Ertter, Brad Olson et al 1991-4-7 9728 Contra Costa Eagle Peak on Mount Diablo; scree slopes on East and Southwest side, especially in drainages 228 Comment
  UC691879  Sanicula saxatilis Mary L. Bowerman 1931-4-25 768 Contra Costa Mount Diablo summit, little northwest of house Mount Diablo Comment
  JEPS955  Sanicula tuberosa W. L. Jepson 1922-5-23 9663 Contra Costa Mount Diablo Comment
  UC691876  Sanicula tuberosa Mary L. Bowerman 1931-4-25 755 Contra Costa Mount Diablo, near junction of south and west roads Mount Diablo Comment
  SEINET238194 Image available Sasa borealis Beecher Crampton 1966-10-18 7815 Contra Costa CULTIVATED ; Kensington Berkeley Hills Blake Garden UC Berkeley Dept. of landscape architecture. Comment
  JEPS75491  Satureja douglasii P. F. Yorks 1975-7-5 469 Contra Costa on Hampton Road ca 1.8 km s Bear Creek Road (n of Briones Reservoir); Hampton Road Natural Reserve Comment
  CDA42438  Scandix pecten-veneris D. G. Kelch 2012-5-29 12 .091 Contra Costa Carquinez Strait Region; Point Pinole. Comment
  CAS-BOT-BC283604  Schedonorus pratensis Barrett Anderson 1987-4-29 3485 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road. Pinole dam site for EBMUD 125 Comment
  CAS-BOT-BC111376  Schoenoplectus acutus var. occidentalis Virginia I. Dains; Walter Knight 1986-8-8 5479 Contra Costa Growing in tidal area, Jct Rock S1 & Werner Cut. Comment
  CAS-BOT-BC111481  Schoenoplectus americanus Volney Rattan 1879-1-1 s.n. Contra Costa Antioch Comment
  CAS-BOT-BC226833  Schoenoplectus californicus Virginia I. Dains; Walter Knight 1986-8-8 5463 Contra Costa Jct Rock S1 & Werner Cut Comment
  RSA0026145  Schoenoplectus pungens var. pungens Barbara Ertter 1998-6-20 16239 Contra Costa Shell Ridge Open Space on NW side of Mount Diablo, Alkali Pond at Wiget Lane entrance. 91 Comment
  JEPS46490  Scirpus W. L. Jepson 1919-1-5 8201 Contra Costa Antioch San Joaquin River (on beach) Comment
  CDA15247  Scirpus acutus var. occidentalis G. F. Hrusa, D. Crowe 1998-5-8 14378 Contra Costa Sacramento Delta; Dow Chemical property at Pittsburg adjacent to shore of San Joaquin River. Comment
  JEPS111886  Scirpus cernuus D. G. Kelch 2003-8-13 03 .120 Contra Costa Martinez Marsh 0 Comment
  JEPS111880  Scirpus koilolepis A. G. Murdock 2004-4-30 252 Contra Costa McEwen Road West side of road 130 Comment
  UC2029146  Scirpus maritimus Barbara Ertter with Dan Norris 1999-11-14 16854 Contra Costa Black Diamond Mines Regional Preserve, Sand Creek on east side Stewartville Trail, dominated by dense stand of Scirpus americanus. Comment
  UC692194  Scirpus microcarpus Mary L. Bowerman 1942-10-4 3851 Contra Costa Mount Diablo Mount Diablo (Russelman Park Road) 243 Comment
  CDA39144  Scirpus microcarpus D. G. Kelch 2003-4-13 3 .137 Contra Costa Carquinez Strait; Pinole Creek. Comment
  UC2031415  Scribneria bolanderi Barbara Ertter with David Gowen 2006-4-14 18669 Contra Costa Lime Ridge Open Space (City of Concord) at NW foot of Mt Diablo, SE of Ygnacio Valley Road Comment
  PASA1037  Scrophularia californica Annetta Carter 1929-3-31 Contra Costa Near Clayton. Hills north of Mt. Diablo Comment
  UC1713660  Scutellaria tuberosa Herbert L. Mason 1928-4-15 4342 Contra Costa top of Moraga Ridge Comment
  CAS-BOT-BC240055  Secale cereale Alice Eastwood 1921-4-18 10313 Contra Costa Antioch Comment
  CAS-BOT-BC363289  Senecio aronicoides Alice Eastwood 1915-5-30 4535 Contra Costa Mt. Diablo Comment
  JEPS19398  Senecio flaccidus var. douglasii G. Thomas Robbins 1940-5-19 326 Contra Costa e of Antioch (hills bordering San Joaquin River); San Joaquin River Comment
  RSA107411  Senecio flaccidus var. douglasii L. S. Rose 1955-10-17 55186 Contra Costa Antioch 15 Comment
  CAS-BOT-BC363702  Senecio hydrophilus Walter Knight 1977-7-15 s.n. Contra Costa Little Corral site. Antioch Sand Dunes Comment
  CDA18812  Senecio mikanioides R. M. Case 1999-12-2 PDR 1219291 Contra Costa Along Wildcat Canyon Rd., 1.9 mi NW of intersection of Wildcat Canyon Rd. and Dam Rd., vicinity of Orinda. 0 Comment
  UC1818978  Senecio sylvaticus Barbara Ertter, Gary Schoolcraft 1996-4-7 14567 Contra Costa Point San Pablo in west Richmond, crest of road to yacht harbor, coastal grassland on ridge southwest-facing slope. Comment
  UC651289  Senecio vulgaris Ira L. Wiggins 1930-4-18 4597 Contra Costa n end Jersey Island Comment
  CAS-BOT-BC80265  Sequoia sempervirens John Thomas Howell 1925-10-11 1500 Contra Costa Moraga Ridge, Oakland Hills Comment
  UC1134197  Sequoia sempervirens R. W. Lundh 1933-3-1 205 Contra Costa 1/2 mi sw Redwood Peak; Concord Quadrangle Comment
  HSC2615  Sequoia sempervirens D. A. Shally 1965-4-18 35 Contra Costa Canyon at Canyon Store Comment
  RSA29235  Sherardia arvensis Joseph A. Ewan 1934-3-10 8630 Contra Costa 1 mile below Orinda Road. Wildcat Canyon. Comment
  UC2029065  Silene laciniata subsp. californica Barbara Ertter 2000-7-29 17440 Contra Costa Donner Basin on north side of Mount Diablo, lower Middle Trail between first creek crossing and Falls Trail junction. Comment
  UC692533  Silene verecunda subsp. platyota Mary L. Bowerman 1935-6-1 3108 Contra Costa largest ridge between Ransom Point ridge and Mitchell-Pine divide (Mount Diablo); , btw Ransom Point ridge and Mitchell-Pine div 1066 Comment
  CDA9510  Sinapis arvensis D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .237 Contra Costa CA Delta; Along Clifton Court Near Clifton Court Forebay. Comment
  UC691259  Sinapis arvensis Mary L. Bowerman 1938-5-25 3634 Contra Costa North Road 2 mi from North Gate (Mount Diablo); , North Road 182 Comment
  CAS-BOT-BC74938  Sinapis arvensis R. E. Frenkel 1964-2-3 345 Contra Costa On Tassajara Road, 2.1 mile east of Danville. 129 Comment
  RSA128364  Sinapis arvensis P. H. Raven 1950-3-5 1405 Contra Costa 0.75 mile from place where it meets Orinda - Richmond Road, Bear Creek Road. 107 Comment
  UCD115440  Sinapis arvensis Joel H. Smith 1940-3-18 13 Contra Costa valley region between Walnut Creek and Martinez. 167 Comment
  UC691256  Sisymbrium officinale Mary L. Bowerman 1935-5-16 2987 Contra Costa Mount Diablo, Russelman Park Russelman Park; Mount Diablo, Russelman Park 381 Comment
  JEPS64283  Sisyrinchium bellum W. L. Jepson 1922-5-23 9670 Contra Costa n slope Mount Diablo Comment
  UC905261  Smilacina racemosa J. A. Rattenbury 1948-5-11 114 Contra Costa 1/2 mi e Oakland Tunnel (on s side of hwy above creek) 243 Comment
  CDA20181  Solanum elaeagnifolium A. Niang 2003-7-9 PDR 1406328 Contra Costa San Francisco Bay Area; Brentwood. 0 Comment
  CDA5969  Solanum lanceolatum M. S. Bergseng, R. DeBoer 1959-8-14 2943 Contra Costa 2459 Alva, El Cerrito. 0 Comment
  JEPS12078  Solanum umbelliferum J. Burtt Davy 1895-4-7 985 Contra Costa Antioch Comment
  JEPS99576  Solanum umbelliferum Mary Bowerman 1975-5-11 Contra Costa Mount Diablo, Back Creek. Comment
  JEPS99577  Solanum umbelliferum Mary Bowerman 1975-5-11 Contra Costa Mount Diablo, Back Creek. Comment
  NY853874  Solanum umbelliferum M. L. Bowerman 1975-5-11 s.n. Contra Costa Mount Diablo. Back Creek. Comment
  UC176058  Solanum umbelliferum Dr. J. H. Goodspeed 1913-5-3 Contra Costa Moraga Valley Comment
  UCD38575  Solanum umbelliferum Beecher Crampton 1956-5-14 3398 Contra Costa Headwaters of Marsh Creek, southeastern of Mt. Diablo. 640 Comment
  CAS-BOT-BC231713  Solanum umbelliferum Paul F. Covel 1940-5-12 s.n. Contra Costa Summit, Mt. Diablo Comment
  POM215197  Solanum umbelliferum D. D. Keck 1933-11-2 2619 Contra Costa 1 mile SE of Oakley. Comment
  SEINET6186041  Solanum umbelliferum P. Del Monte 1976-3-28 s.n. Contra Costa Morgan Territory Rd., 1 miles north of Curry Creek Park 122 Comment
  SEINET7262189 Image available Solanum umbelliferum J. T. Howell 1933-5-14 11291 Contra Costa E of St. Mary's College Comment
  UC1999894  Solidago velutina subsp. californica J. C. Semple, B. A. Suripto, T. Ahmed 1990-8-16 9338 Contra Costa E of Berkeley, Berkeley Hills, Grizzly Peak Rd., disturbed area in formley [formerly] wooded slope N of road. Comment
  UC2028128  Soliva sessilis Barbara Ertter with Richard K. Brummitt 1998-5-6 16080 Contra Costa Base of Mitchell Rock Trail on north base of Mount Diablo. Comment
  CHSC75065  Sonchus oleraceus Roger Thom 1987-5-26 22 Contra Costa 1100 block of Hillside Ave. Walnut Creek. Roadside. 36 Comment
  UC2032807 Image available Sonchus oleraceus Doran, Andrew Scott 2012-3-20 677 Contra Costa Brooks island loading dock, North side of island. Comment
  UC650555  Sonchus oleraceus Ira L. Wiggins 1930-4-18 4608 Contra Costa Jersey Island Comment
  RSA181840  Spartina patens Rolf Mall 1964-11-19 s.n. Contra Costa Southampton tidal marsh at head of Suisun Bay between Benicia and Vallejo, Contra Costa County Comment
  JEPS111532  Spergularia bocconi D. G. Kelch 2005-5-5 05 .216 Contra Costa Point Pinole - Giant Marsh 3 Comment
  UC1818861  Spergularia bocconi Barbara Ertter, Kristin Ertter 1995-7-11 14468 Contra Costa Diablo Foothills Regional Park, dried road bed at base of east-facing cliff. 121 Comment
  OBI17382  Spergularia macrotheca Robert F. Hoover 1967-4-28 10514 Contra Costa Byron Hot Springs Comment
  SD131825  Spergularia macrotheca var. longistyla Barbara Ertter, Jim Jokerst and Dave Magney 1989-4-5 8113 Contra Costa Alkali sink west and adjacent to Clifton Court Forebay. Comment
  CDA15279  Spergularia marina G. F. Hrusa, D. Crowe, R. York 1998-7-17 14717 Contra Costa Sacramento Delta; E end of Dow Chemical property at Pittsburg. Comment
  RSA0098554  Spergularia marina C. F. Baker 1903-4-27 2865 Contra Costa Byron. Comment
  UC2070545  Spergularia marina Barbara Ertter 2003-3-28 18123 Contra Costa Round Valley Regional Preserve, north end of Round Valley along Murphy's Meadow trail. Comment
  UC2036957  Spergularia rubra Mary L. Bowerman 1946-2-10 4081 Contra Costa Hard ground by C.C.C. camp. Comment
  UC2043056  Spergularia villosa Barbara Ertter with Brad Olson 1991-10-13 10855 Contra Costa SW corner of Point Richmond, hillside across road from George Miller Jr. Regional Park. Comment
  JEPS111061  Spiranthes romanzoffiana Lee Echols 2003-7-20 s.n. Contra Costa Richmond Field Station, west-central portion of Danthonia grassland N of Lark Drive 15 Comment
  UC606760  Stachys ajugoides var. rigida Edward Lee 1936-4-19 2011 Contra Costa Red Rock, ne slope of island San Francisco Bay Comment
  UC691720  Stachys ajugoides var. rigida Mary L. Bowerman 1932-5-6 1430 Contra Costa Mitchell Canyon, at end of road Mount Diablo 251 Comment
  UCD125808  Stachys albens Malcolm A. Nobs; S. Galen Smith 1949-7-8 943 Contra Costa Otto's Black Bass Resort, 4 miles N of Kingston. Comment
  JEPS107110  Stachys pycnantha Barbara Ertter, Kristin Ertter 1995-7-11 14484 Contra Costa West side of Mt Diablo SW of Walnut Creek; dense growth at lower end of Pine Pond, in sun. 182 Comment
  UC2055616  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC2055617  Stachys pycnantha Joseph Andorfer Ewan 1933-10-15 8035 Contra Costa SW slope Mt. Diablo. 1066 Comment
  UC1795669  Stachys pycnantha Barbara Ertter, Kristin Ertter 1995-7-11 14484 Contra Costa West side of Mt Diablo SW of Walnut Creek. 182 Comment
  RSA721866  Stachys rigida subsp. quercetorum Barbara Ertter, Brad Olson 1994-5-7 12756 Contra Costa S end Pt. Molate Beach Park west of Richmond north of San Rafael Bridge, edge of San Francisco Bay. Comment
  UC691798  Stebbinsoseris heterocarpa Mary L. Bowerman 1933-5-8 2022 Contra Costa n side Rock City Ridge (n side Fossil Ridge); Mount Diablo, , Fossil Ridge Comment
  RSA0027716  Stebbinsoseris heterocarpa Barbara Ertter 1998-5-3 16076 Contra Costa Wall Point Ridge on southwest flank of Mount Diablo, near Wall Point. 457 Comment
  JEPS97545  Stellaria media R. D. Stone 1981-3-23 348 Contra Costa Huckleberry Trail Oakland Hills, near Alameda-Contra Costa county line (NE of intersection of Skyline Blvd. and Snake Rd.) Comment
  UC651293  Stellaria media Ira L. Wiggins 1930-4-18 4598 Contra Costa n end Jersey Island Comment
  JEPS99599  Stellaria nitens Mary Bowerman 1978-4-19 Contra Costa Mount Diablo, Back Canyon Comment
  UC692302  Stellaria nitens Mary L. Bowerman 1931-3-21 603 Contra Costa e end Fossil Ridge; Mount Diablo Comment
  UC2070542  Stellaria nitens Barbara Ertter with Chris Thayer 2002-4-13 17830 Contra Costa North side of Mount Diablo, Zippe Trail on north face of Mount Olympia Comment
  UC2070629  Stellaria nitens Barbara Ertter with Joanne Kerbavaz, David Gowen, Mike Park and Victoria Seidman 2004-4-20 18362 Contra Costa Eagle Peak Trail on east side of Twin Peaks, north side of Mount Diablo. Comment
  UC2027725  Stellaria pallida Barbara Ertter with Brad Olson, Jim Shevock, et al. 1997-3-19 15508 a Contra Costa Vasco Caves Regional Park east of Los Vaqueros Reservoir between Livermore and Brentwood. Comment
  UC2027739  Stellaria pallida Barbara Ertter 1997-1-5 15444 Contra Costa Lime Ridge Open Space on northwest side of Mount Diablo, section on north side of Ygnacio Valley Road. Comment
  UC2028164  Stellaria pallida Barbara Ertter 1998-2-15 15919 Contra Costa Shell Ridge Open Space on northwest base of Mount Diablo, Haystack Hill NW of Old Borges Ranch. Comment
  UC2028250  Stephanomeria elata Barbara Ertter, Mary Bowerman, Lisa Schultheis 1998-8-21 16399 Contra Costa South side of Mount Diablo, South Gate Road 0.8 miles below entry kiosk. Comment
  CAS-BOT-BC375769  Stephanomeria virgata Peter Rubtzoff 1951-10-7 819 Contra Costa Along lower San Joaquin River, east of Antioch Comment
  UCD150892  Stephanomeria virgata James A. Neilson Jr.; Samuel A Bamberg 1975-10-22 3492 Contra Costa Walnut Creek drainage at State Highway 4. Elevation estimated using Google Earth by label maker. 1 Comment
  UC2028477  Stipa lepida Barbara Ertter with Richard K. Brummitt 1998-5-6 16104 Contra Costa Point San Pablo west of Richmond, crest of road to yacht harbor Comment
  UC630661  Streptanthus albidus subsp. peramoenus John L. Morrison and Lincoln Constance 1938-5-5 3030 Contra Costa steep sw slope 2 mi outside N. entrance to Mt. Diablo State Park Comment
  UC691145  Streptanthus albidus subsp. peramoenus Mary L. Bowerman 1935-6-8 3123 Contra Costa North Road 2 mi from North Gate (w of chaparral); Mount Diablo Comment
  CAS-BOT-BC87343  Streptanthus hispidus L. R. Abrams 1921-5-25 8059 Contra Costa Summit Mount Diablo. Comment
  CAS-BOT-BC87345  Streptanthus hispidus Mrs. E. C. Sutliffe 1920-5-30 s.n. Contra Costa Mount Diablo. Comment
  CAS-BOT-BC87346  Streptanthus hispidus Alice Eastwood 1915-5-30 4526 Contra Costa Mount Diablo. Comment
  JEPS27001  Streptanthus hispidus E. W. Hicks 1917-3-24 112 Contra Costa Mt. Diablo 762 Comment
  UC691068  Streptanthus hispidus Mary L. Bowerman 1931-4-5 675 Contra Costa rocky point below Gregory Ranch; Mount Diablo Comment
  UC956588  Streptanthus hispidus Freed W. Hoffman 1949-4-17 2765 Contra Costa Deer Flat Trail a short distance n Juniper Camp 838 Comment
  RSA721273  Stuckenia filiformis Barbara Ertter 1996-5-11 14644 Contra Costa North Gate Road at northwest base of Mount Diablo, Ticle Pond west of road toward Castle Rock. Comment
  SD211526  Stuckenia pectinata Barbara Ertter, Lynn Hosley 1991-9-22 10824 Contra Costa Lafayette Reservoir in hills Southwest of Lafayette, in water at East end of dam 136 Comment
  RSA0027710  Stuckenia pectinata Barbara Ertter, Chris Thayer 1996-10-25 15371 Contra Costa Northwest flank of Mount Diablo. Tick Pond at arc of Falcon Road between North Gate Road and Castle Rock. 183 Comment
  UC2062677  Stuckenia striata Barbara Ertter 2005-8-15 18624 Contra Costa Antioch/Oakley Regional Shoreline, under south end of Antioch Bridge between Antioch and Oakley. Comment
  CAS-BOT-BC422907  Stylomecon heterophylla Paul F. Covel 1936-5-17 156 Contra Costa Mt Diablo, on trail summit-north peak. Comment
  CAS-BOT-BC422914  Stylomecon heterophylla Volney Rattan 1883-4-1 s.n. Contra Costa Martinez Comment
  CAS-BOT-BC422916  Stylomecon heterophylla Volney Rattan 1887-5-22 s.n. Contra Costa Alhambra Val. Comment
  CAS-BOT-BC422920  Stylomecon heterophylla James McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA181407  Stylomecon heterophylla James I. McMurphy 1910-4-9 s.n. Contra Costa Antioch. Comment
  RSA446228  Stylomecon heterophylla Glenn A. Gorelick 1967-5-20 s.n. Contra Costa Russelman Park, Mt. Diablo State Park Comment
  RSA446229  Stylomecon heterophylla John Doyen, Glenn Gorelick 1966-4-22 s.n. Contra Costa Russelman Park. Mt. Diablo State Park. Comment
  UC117985  Stylomecon heterophylla Michener and Bioletti 1892-4-10 841 a Contra Costa Byron [Alcalde] pencilled in Byron; Byron [Alcalde] pencilled in Comment
  UC72722  Stylomecon heterophylla Miss Carlotta Case July 1904 Contra Costa Muir Station; beside track Comment
  UC1238003  Suaeda moquinii John H. Weiler 1961-4-9 6173 Contra Costa 3 mi s Byron (e side of road) Comment
  CDA9506  Suaeda nigra D. G. Kelch, Michael Park, Abigail Moore 2007-5-1 7 .233 Contra Costa Byron Airport. Comment
  RSA29681  Symphoricarpos albus var. laevigatus Joseph A. Ewan 1936-5-3 9500 Contra Costa Wildcat Creek. Comment
  UC691751  Symphoricarpos albus var. laevigatus Mary L. Bowerman 1931-4-11 700 Contra Costa Pine Canyon Pine Canyon, Mount Diablo; Mount Diablo Comment
  UC1076414  Symphoricarpos albus var. laevigatus Herbert L. Mason 1924-11-23 1158 Contra Costa Cashion Comment
  JEPS13659  Symphoricarpos mollis H. H. Haworth 1917-5-3 Contra Costa Redwood Peak Comment
  UC691759  Symphoricarpos mollis Mary L. Bowerman 1930-6-18 352 Contra Costa w side, little below summit Meridian Peak; Mount Diablo Comment
  CAS-BOT-BC97699  Symphyotrichum chilense Elizabeth McClintock; Stephen Rae 1978-8-3 s.n. Contra Costa Suisun Bay, Antioch Comment
  UCD150914  Symphyotrichum lentum James A. Neilson Jr. 1972-10-22 s.n. Contra Costa Walnut Creek drainage, west and south of railroad and leves. Elevation estimated using Google Earth by label maker. 3 Comment
  JEPS41054  Symphyotrichum subspicatum Rimo Bacigalupi and L. R. Heckard 1965-5-11 9079 Contra Costa On rolling upper slopes of Brooks Island, mostly gently north and east exposures. Comment
  SD175790  Symphyotrichum subulatum var. parviflorum D. G. Kelch 2006-9-15 06 472 Contra Costa Martinez, Waterfront Road Marina Dr., 100 m. west of Pacheco Slough. 2 Comment
  UCD159501  Symphyotrichum subulatum var. parviflorum D. S. Park 2010-9-11 250 -2 Contra Costa Waterfront Rd. Growing along roadside. Disturbed. Wet. 5 Comment
  JEPS96865  Tamarix parviflora Dean W. Taylor 1971-4-3 986 Contra Costa along Highway 4 in Contra Coasta County 1 mile east of the junction with Byron Road 3 Comment
  UC1607567  Tamarix parviflora Barbara Ertter 1993-4-2 11480 Contra Costa west of Crockett (below Vista Road, abandoned railroad station); Carquinez Regional Park Comment
  UCD128114  Tauschia hartwegii Morris Halperin 1929-4-21 s.n. Contra Costa Moraga Valley. Comment
  CAS-BOT-BC447423  Tellima grandiflora Elsie Zeile 1909-4-18 s.n. Contra Costa Redwood Peak Comment
  UC692143  Thalictrum fendleri var. polycarpum Mary L. Bowerman 1935-6-15 3135 Contra Costa on banks of stream Mount Diablo, Mitchell Canyon 640 Comment
  CAS-BOT-BC88248  Thysanocarpus curvipes Alice Eastwood 1915-5-30 4554 Contra Costa Mount Diablo. Comment
  CAS-BOT-BC88251  Thysanocarpus curvipes John Thomas Howell 1933-5-14 11271 Contra Costa Hills east of Saint Mary's College. Comment
  CAS-BOT-BC88260  Thysanocarpus curvipes Lewis S. Rose 1933-4-17 33096 Contra Costa Antioch. Comment
  CDA1354  Thysanocarpus curvipes D. G. Kelch 2004-3-13 4 .041 Contra Costa Mt Diablo Region.; Road cut along Marsh Creek Rd about 1.5 miles W of Deer Valley Rd. Comment
  HSC101956  Thysanocarpus curvipes Nikolaus Gillen, Michelle Bihler 2014-3-20 8 Contra Costa Mount Diablo State Park. Back Creek Trail. 340 Comment
  JEPS54176  Thysanocarpus curvipes W. L. Jepson 1922-5-23 9666 Contra Costa Mt. Diablo Comment
  JEPS54202  Thysanocarpus curvipes W. L. Jepson 1891-5-24 Contra Costa Mt. Diablo Comment
  JEPS54205  Thysanocarpus curvipes W. L. Jepson May 22 1891-May 23 1891 5 h Contra Costa Mt. Diablo Comment
  JEPS68963  Thysanocarpus curvipes Edward Lee 1935-3-10 1295 Contra Costa e. Antioch (Antioch Sand Dunes); Antioch Sand Dunes Comment
  UC691251  Thysanocarpus curvipes Mary L. Bowerman 1931-4-19 740 Contra Costa Mitchell Canyon below Deer Flat Mount Diablo (Mount Diablo); , Mitchell Canyon below Deer Flat Comment
  CAS-BOT-BC88254  Thysanocarpus curvipes John Thomas Howell 1934-4-8 11821 Contra Costa Marsh Creek Road southwest of Brentwood. Comment
  RSA0069377  Thysanocarpus curvipes Katie Gallagher, Nick Jensen 2014-4-26 212 Contra Costa Las Trampas Regional Wilderness. 487 Comment
  UC11030  Thysanocarpus curvipes subsp. curvipes Brewer 1862-1 Contra Costa Mount Diablo Comment
  SEINET10482179  Thysanocarpus curvipes var. elegans John T. Middleton 1936-4-18 Middleton 140 Contra Costa Briones valley. Comment
  CAS-BOT-BC66959  Thysanocarpus laciniatus J. W. Congdon 1896-5-3 s.n. Contra Costa Mount Diablo. Comment
  UC691140  Thysanocarpus laciniatus Mary L. Bowerman 1931-5-7 805 Contra Costa North Peak ridge Mount Diablo (slightly n of crest, Mount Diablo); , North Peak ridge Comment
  UC10983  Thysanocarpus laciniatus W. H. Brewer 1862-5-14 1097 Contra Costa dry rocky spurs Mount Diablo Comment
  JEPS100128  Torilis arvensis A. Langston 2003-7-9 AL 61 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  RSA720806  Torilis nodosa Barbara Ertter, Mary L. Bowerman 1995-6-11 14254 Contra Costa Shell Ridge recreation area southeast of Walnut Creek, bank of Indian Creek above Indian Valley pond 76 Comment
  CAS-BOT-BC172933  Toxicodendron diversilobum D. E. Breedlove 1970-4-18 17442 Contra Costa At the north edge of Lafayette above Laurel Drive 243 Comment
  RSA122517  Toxicodendron diversilobum R. W. Lundh 1932-9-22 169 Contra Costa 1/2 mile southwest of Mt Diablo 915 Comment
  UC692580  Toxicodendron diversilobum Mary L. Bowerman 1942-5-24 3845 Contra Costa W. Fork Sycamore Creek (Madrone Canyon) below Rock City Camp; Mt. Diablo, Madrone Canyon, W. Fork Sycamore Creek Comment
  CAS-BOT-BC172935  Toxicodendron diversilobum John Thomas Howell 1925-11-1 1541 Contra Costa Ne. side of Moraga Ridge, Oakland Hills Comment
  CAS-BOT-BC377055  Tragopogon dubius R. E. Frenkel 1964-4-29 466 Contra Costa On the south side of Ignacio Valley Road, 0.6 mile west of the junction with Marsh Creek Road 182 Comment
  JEPS100167  Tragopogon porrifolius G. Smick 2003-5-6 GAS 166 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  UC2012949  Tribulus terrestris Barbara Ertter with CNPS Volunteers 1990-9-16 9643 Contra Costa NE Contra Costa Co. Bethel Island NE of Brentwood, E end of Gateway Road at W edge of Franks Tract State Regional Area. Comment
  UC615564  Trichostema lanceolatum Beryl O. Schreiber 1933-10-5 939 Contra Costa road to Mount Diablo Comment
  UC165584  Trifolium albopurpureum J. Burtt Davy 1895-1 930 Contra Costa Antioch Comment
  SD37268  Trifolium albopurpureum McCallum 1933-4-25 3699 Contra Costa Hillside near Tassajana Comment
  UC165553  Trifolium albopurpureum var. albopurpureum J. Burtt Davy 1895-1 956 Contra Costa Antioch Comment
  UC692682  Trifolium albopurpureum var. albopurpureum Mary L. Bowerman 1933-4-26 1922 Contra Costa ridge ese the peak (s face); Mt. Diablo, North Peak Comment
  UC1795830  Trifolium albopurpureum var. albopurpureum Barbara Ertter, Chris Thayer 1995-4-25 13983 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Sycamore Canyon trail from Knobcone Point Rd., open grassland. 457 Comment
  UC137789  Trifolium albopurpureum var. dichotomum C. F. Baker 1903-4-27 2797 Contra Costa Byron Comment
  UC2070467  Trifolium albopurpureum var. olivaceum Barbara Ertter 2000-5-14 17002 Contra Costa Lower Donner Canyon on north side of Mount Diablo, junction of Donner Canyon, Cardinet Oaks and Meridian Ridge Roads. Comment
  UC697198  Trifolium barbigerum Mary L. Bowerman 1942-5-24 3843 Contra Costa lower Rock City Camp Mount Diablo, Fossil Ridge 457 Comment
  POM194647  Trifolium bifidum Y. Mexia 1929-4-21 2372 Contra Costa Moraga Valley. Comment
  POM300697  Trifolium bifidum var. decipiens Mary L. Bowerman 681 Contra Costa South of Russelman Parak. 381 Comment
  UC2028114  Trifolium campestre Barbara Ertter with Richard K. Brummitt 1998-5-6 16095 Contra Costa Donner Canyon Trail near Regency Drive trailhead, north base of Mount Diablo. Comment
  CHSC24925  Trifolium ciliolatum M. A Callahan 1976-4-15 20 Contra Costa Ca. 15 mi ne of house at 1976 Mohawk Dr. Pleasant Hill. 121 Comment
  JEPS100111  Trifolium ciliolatum G. Smick 2003-5-8 GAS 184 Contra Costa Mt. Wanda; Martinez; John Muir National Historic Site; Mt. Wanda, John Muir National Historic Site Comment
  POM194646  Trifolium ciliolatum Ynez Mexia 2373 Contra Costa Moraga Valley Comment
  UC16529  Trifolium depauperatum var. amplectens C. Michener 1891-4-23 Contra Costa Point Isabel Comment
  UC1543246  Trifolium depauperatum var. truncatum Donald G. Nelson 1937-3-30 476 Contra Costa a few mi s Byron (on rr tracks paralleling the hwy, on rd ro Tracy) Comment
  UC1607665  Trifolium depauperatum var. truncatum Barbara Ertter with Michelle Seidl 1992-3-14 10921 Contra Costa E of Mount Diablo; Morgan Territory Regional Preserve Comment
  UC165577  Trifolium depauperatum var. truncatum J. Burtt Davy 1895-1 938 Contra Costa Antioch Comment
  UC1861833  Trifolium depauperatum var. truncatum Barbara Ertter, Chris Thayer 1995-4-25 13998 Contra Costa Southeast side of Mt. Diablo northeast of Danville; Black Hawk Ridge Rd. on north side Black Hawk Ridge. 548 Comment
  UC555355  Trifolium depauperatum var. truncatum H. L. Mason 1929-3-15 5061 Contra Costa ca 5 mi from Brentwood (Marsh Creek Rd) Comment
  UC692647  Trifolium depauperatum var. truncatum Mary L. Bowerman 1932-3-23 1125 Contra Costa betw Monument and Concord (Oak Grove School junction); Mount Diablo Comment
  POM18876  Trifolium depauperatum var. truncatum Edward L. Greene 1903-4-27 2863 Contra Costa Byron Comment
  SEINET7325849 Image available Trifolium depauperatum var. truncatum Barbara Ertter, Daniel Norris 2001-4-15 17611 Contra Costa Mount Diablo State Park; N-facing grassland 274 Comment
  UC2028081  Trifolium depauperatum var. truncatum Barbara Ertter, Tony Morosco 1998-4-12 15988 Contra Costa Base of Mount Olympia on north side of Mount Diablo, open flat below quarry NE of Olympia Trail. Comment
  UCD108394  Trifolium depauperatum var. truncatum P. B. Kennedy 1929-4-21 10227 Contra Costa Franklin Canyon Road from Concord Soldier's Monument. Comment
  UC631616  Trifolium fucatum P. B. Kennedy 1928-4-28 10096 Contra Costa 2 mi from Tunnel (on hwy) Comment
  CDA29533  Trifolium glomeratum D. G. Kelch, Troy MacGregor 2009-5-1 9 .287 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC631031  Trifolium gracilentum Mrs. K. Brandegee May 1907 Contra Costa Antioch Comment
  UC692679  Trifolium gracilentum Mary L. Bowerman 1932-4-27 1389 Contra Costa w Riggs Canyon (Oyster ridge, s face of canyon); Mount Diablo Comment
  RSA695881  Trifolium gracilentum Barbara Ertter, Chris Thayer 1993-5-7 11712 Contra Costa Ca 1/2 mile N of Vollmer (=Bald) Peak in East Bay Municipal Utilities District land E of Tilden Park. Grazing land on lower slopes S of Wildcat Canyon Road. Comment
  JEPS65910  Trifolium gracilentum var. gracilentum W. L. Jepson 1917-4-19 6865 Contra Costa Oakland Hills Comment
Read comments
Dec 17 2008
  CDA23566  Trifolium hirtum D. G. Kelch, D. A. Weinstein 2008-4-2 08 .032-b Contra Costa Carqinez Strait; E Richmond. Hilltop Rd. Chevy s Hill. Comment
  CDA8356  Trifolium hirtum D. G. Kelch, A. G. Murdock 2005-4-15 5 .148 Contra Costa Carquinez Strait; In East Bay Regional Park land W of Cumming s Skyway near Summit (nr old C&H Sugar diatomaceous earth dump). Comment
  RSA0033857  Trifolium hybridum Barbara Ertter 2000-7-16 17391 Contra Costa Lower Pine Creek in Diablo Foothills Regional Park, a short distance upstream from dry check-dam. 121 Comment
  UCD146715  Trifolium incarnatum G. F. Hrusa; D. Crowe 1998-5-8 14364 Contra Costa Sacramento-San Joaquin River Delta. Within Dow Chemical property at Pittsburg. 10 Comment
  UC692245  Trifolium microcephalum Mary L. Bowerman 1935-4-26 2910 Contra Costa w Indian Ceremonial Spring; Mount Diablo 1005 Comment
  UC692671  Trifolium microcephalum Mary L. Bowerman 1932-4-27 1392 Contra Costa canyon w Riggs Canyon; Mount Diablo, Oyster Ridge Comment
  UC1130084  Trifolium microdon C. M. Belshaw 1936-5-7 2043 Contra Costa 2 mi s San Ramon; Mt. Diablo quadrangle 274 Comment
  JEPS4442  Trifolium oliganthum W. L. Jepson 1891-6-9 13698 Contra Costa Fish Ranch Comment
  RSA721202  Trifolium olivaceum var. olivaceum Barbara Ertter 1995-5-29 14225 Contra Costa Mt. Diablo southeast of Walnut Creek, serpentine knoll ca 1/2 airmile north of Curry Point 488 Comment
  CHSC116629  Trifolium tomentosum Lowell Ahart; Josephine Guardino 2016-4-19 20760 Contra Costa Undesignated section of Canada de Los Vaqueros Land Grant. On both sides of the dirt roads, 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Dam, approximately 25 miles (air) southwest of Stockton. 160 Comment
  JEPS127098  Trifolium tomentosum Lowell Ahart, Josephine Guardino 2016-4-19 20760 Contra Costa 1.8 miles (air) northwest of Los Vaqueros Reservoir Marina, 2.1 miles (air) southwest of Los Vaqueros Reservoir Dam, approximately 25 miles (air) southwest of Stockton. Undesignated section of Canada de Los Vaqueros Land Grant, Byron Hot Spring USGS 7.5' Quad. Comment
  UCR263551  Trifolium tomentosum Barbara Ertter 2002-5-8 17832 Contra Costa San Francisco Bay Region, Richmond Field Station 6 Comment
  PASA252  Trifolium tridentatum Annetta Carter 1929-3-31 Contra Costa Hills north of Mt. Diablo, near Clayton Comment
  CAS-BOT-BC26494  Trifolium triflorum M. K. Curran 1883-1-1 s.n. Contra Costa Near Mt. Diablo Comment
  CDA29506  Trifolium variegatum var. major D. G. Kelch, Troy MacGregor 2009-5-1 9 .279 Contra Costa Carquinez Strait; Fernandez Ranch in valley bottom along Christie Rd. Comment
  UC165546  Trifolium variegatum var. melananthum Ivar Tidestrom 1895-4-13 Contra Costa near Lafayette Comment
  UC16776  Trifolium variegatum var. melananthum J. Burtt Davy 1900-3-24 6515 Contra Costa Stege; Western MIddle California, Stege Comment
  CDA28080  Trifolium willdenovii D. G. Kelch, A. G. Murdock 2005-4-24 5 .167 Contra Costa Carquinez Strait Region; Franklin Canyon. Collier Hill. West Carbon. Comment
  OBI12643  Trifolium willdenovii W. L. Jepson 1925-4-26 10691 Contra Costa Mt. Diablo Comment
  UC407376  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  UC650439  Trifolium willdenovii Ira L. Wiggins 1930-4-17 4575 Contra Costa 1/4 mi s Byron Comment
  UC692240  Trifolium willdenovii Mary L. Bowerman 1935-4-12 2816 Contra Costa 2 mi from entrance = North Gate (w rd = n rd); Mount Diablo 259 Comment
  POM18879  Trifolium willdenovii H. P. Chandler 1901-3-22 841 Contra Costa Concord. Comment
  UCD109510  Trifolium willdenovii A. A. Beetle 1939-4-12 1770 Contra Costa Pinole. Comment
  UCD35901  Trifolium willdenovii Beecher Crampton 1966-4-26 7665 Contra Costa ca. 2.5 miles west of Martinez on the road to Crockett. Comment
  UC16828  Trifolium wormskioldii Jos. Burtt Davy 1900-6-7 6663 Contra Costa near Martinez Comment
  CDA33819  Trifolium wormskioldii D. G. Kelch, Abigail Moore, Michael Park, Troy 2010-5-15 10 .107 Contra Costa Mt. Diablo. Trail from Prospector s Gap to Lower Summit parking lot. 0 Comment
  UC1619920  Triglochin striata Barbara Ertter, Dianne Lake, Brad Olson, Lynne Hosley, Amy Hiss 1991-8-18 10714 Contra Costa Browns Island n of Pittsburg (near confluence of Sacramento and San Joaquin Rivers opposite Pittsburg Marina, at (Botany Cove)); Browns Island Comment
  UC508  Triglochin striata Jos. Burtt Davy 1900-6-7 6676 Contra Costa Martinez Comment
  CAS-BOT-BC451964  Triglochin striata Walter Knight; I. Knight; J. T. Howell; E. McClintock; S. Rae; B. Doyle 1978-9-5 3213 Contra Costa Botany Cove, Browns Island. Comment
  UC367060  Trillium chloropetalum J. G. Lemmon April, 1878 Contra Costa Mt. Diablo and Oakland Hills Comment
  CAS-BOT-BC133382  Trillium ovatum P. Raven 1949-3-26 193 Contra Costa Redwood [Canon] Canyon Comment
  JEPS11780  Triodanis biflora Mary L. Bowerman 1933-5-18 2130 Contra Costa w Blackberry Spring (Mount Diablo); , w of Blackberry Spring Comment
  UC103158  Triphysaria eriantha subsp. eriantha C. F. Baker 1903-4-27 2792 Contra Costa Byron Comment
  UC1211917  Triphysaria eriantha subsp. eriantha John H. Weiler 1961-3-7 6127 Contra Costa at the junction of Byron Road and Holey Road Comment
  UC1818944  Triphysaria eriantha subsp. eriantha Barbara Ertter, Mary Bowerman et al. 1995-5-7 14042 Contra Costa Three-Springs Trail on northeast side of Mt. Diablo southeast of Clayton, damp road bed, clayey, in grassy flat south of pond, near edge of blue oak forest. Comment
  JEPS3981  Triphysaria pusilla W. L. Jepson 1923-4-22 9875 Contra Costa Mt. Diablo Comment
  RSA653988  Trisetum canescens Beecher Crampton 1956-5-14 3423 Contra Costa 2 miles W of Martinez, on road to Crockett. Comment
  CDA29245  Triteleia laxa D. G. Kelch 2004-5-9 4 .204 Contra Costa Carquinez Strait Region; Crockett - Upper Edwards Canyon above Crockett Boulevard. Comment
  UC3318  Triteleia laxa W. H. Brewer 1862-4-25 995 Contra Costa Martinez Comment
  CAS-BOT-BC526327  Triteleia laxa Barrett Anderson 1987-4-30 3501 Contra Costa Pinole Creek in Pinole Valley near Castro Ranch Road 125 Comment
  POM203716  Triteleia laxa J. T. Howell 1931-5-12 6468 Contra Costa Oakland Hills Comment
  CAS-BOT-BC67402  Tropidocarpum gracile Alice Eastwood 1914-3-14 3783 Contra Costa Byron Springs. Comment
  UC1241769  Typha Malcolm A. Nobs and S. Galen Smith 1949-6-28 878 Contra Costa on road to Martinez s Crockett Comment
  UC1818859  Typha domingensis Barbara Ertter, Kristin Ertter 1995-7-11 14483 Contra Costa W side of Mount Diablo SW of Walnut Creek, lower end of Pine Pond 182 Comment
  UC2028231  Ulmus minor Barbara Ertter 1998-11-15 16465 Contra Costa North side Mount Olympia on north side Mount Diablo. Comment
  JEPS112487  Umbellularia californica D. G. Kelch 2003-2-7 03 .37.B Contra Costa Franklin Canyon 115 Comment
  UC1126321  Umbellularia californica R. W. Lundh 1932-9-22 168 Contra Costa 1/2 mi sw of Mount Diablo 914 Comment
  OBI13419  Umbellularia californica H. E. McMinn, E. Maino 1931-2-15 13 Contra Costa Leona Heights Comment
Read comments
May 22 2013
  UC2028065  Uropappus lindleyi Barbara Ertter with Tony Morosco 1998-4-12 16009 Contra Costa Mount Olympia on north side of Mount Diablo, below false summit on East Trail. Comment
  UC336484  Uropappus lindleyi unknown Contra Costa near Mt. Diablo Comment
  POM210640  Urtica dioica subsp. holosericea Joseph A. Ewan 1933-10-15 8018 Contra Costa SW slope of Mount Diablo. Comment
  UC195614  Urtica urens I. J. Condit 1913-4-19 Contra Costa Richmond Annex Comment
  CAS-BOT-BC199242  Vaccinium ovatum W. W. Carruth 1901-5-1 s.n. Contra Costa Redwood Canon [Canyon] Comment
  JEPS77019  Vaccinium ovatum Robert M. Lloyd 1963-3-17 2145 Contra Costa 0.5 mi e intersection of Grizzly Peak Road and Skyline Drive (on Skyline (across from 7090 Skyline), Huckleberry trail) Comment
  UC1005914  Verbascum phoeniceum N. Floy Bracelin 1943-5-2 2498 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  RSA29666  Verbena lasiostachys var. lasiostachys Joseph A. Ewan 1936-7-5 9719 Contra Costa Reservoir road, Wildcat Creek. Comment
  UC691535  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-6-28 393 Contra Costa Lower Silver Spring: Edge of marshy spot. Comment
  UC691756  Verbena lasiostachys var. scabrida Mary L. Bowerman 1930-9-27 464 Contra Costa West base spring (2 miles by road from North Gate, take trail to west; follow to fence, go through). Comment
  RSA22314  Verbena robusta Joseph A. Ewan 1936-7-5 9726 Contra Costa Near CCC camp, Wildcat Creek. (see field book) Comment
  CDA9278  Verbena scabra D. G. Kelch 2002-7-15 2 .006 Contra Costa CA Delta; Old San Joaquin River channel, E of Brentwood. San Joaquin County border. 0 Comment
  UC691653  Veronica peregrina subsp. xalapensis Mary L. Bowerman 1931-4-4 664 Contra Costa w of Turtle Rock (Mount Diablo); Mount Diablo Comment
  UC2028187  Veronica peregrina subsp. xalapensis Barbara Ertter 1998-5-3 16056 Contra Costa Turtle Rock ponds along Barbeque Terrace road in upper Pine Canyon, southwest flank of Mount Diablo. Comment
  UC1050160  Viburnum cylindricum N. Floy Bracelin 1943-10-24 2368 Contra Costa Adelante, The Garden of Anson and Anita Blake, Berkeley, California Comment
  UC691563  Viburnum ellipticum Mary L. Bowerman 1933-5-19 2143 Contra Costa Sulphur Spring Canyon, e fork Mount Diablo 457 Comment
  CDA23620  Vicia americana D. G. Kelch, D. A. Weinstein 2008-4-15 8 .041 Contra Costa Carquinez Strait; S Port Costa along Mckewen Rd. Comment
  UC74935  Vicia americana var. americana unknown 1903-4-27 2793 Contra Costa Byron Comment
  JEPS120288  Vicia disperma Barbara Ertter with David Gowen 2012-6-9 21016 Contra Costa lower Vollmer Peak Trail paralleling South Drive, southeastern Tilden Park in Berkeley Hills Comment
  UCR224651  Vicia sativa Dean Kelch 2007-4-29 07 .207 Contra Costa Richmond; 'Chevy's Hill' north of Hilltop Drive 68 Comment
  CDA29047  Vicia sativa subsp. sativa D. G. Kelch 2006-5-4 6 .133 Contra Costa East Bay.; Wildcat Canyon. nr Wildcat Canyon Rd terminus. Comment
  UC1618355  Vicia sativa subsp. sativa Barbara Ertter 1993-4-2 11475 Contra Costa along railroad w of Crockett (at w end of Carquines Strait, San Pablo Bay); San Pablo Bay, Carquines Strait Comment
  UCD108921  Vicia sativa subsp. sativa R. Koch 1996-4-20 1 Contra Costa city of Danville, free space by Mt. Diablo State Park. 121 Comment
  CDA42434  Vicia villosa D. G. Kelch 2012-5-27 12 .075 Contra Costa Carquinez Strait Region; Pinole Valley Park. Comment
  UC1795794  Vicia villosa subsp. varia Barbara Ertter, Mary Bowerman 1995-6-11 14250 Contra Costa Shell Ridge Recreation Area southeast of Walnut Creek, at west base Mt. Diablo.; annual grassland near Indian Valley School entrance, clay soil (planted Clarkia also present). 91 Comment